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1210002102001 = 721131401419431
BaseRepresentation
bin10001100110111001101…
…111101101011011110001
311021200020010102112111201
4101212321233231123301
5124311041014231001
62323511200211201
7153263660111200
oct21467157553361
94250203375451
101210002102001
114271827073a0
1217660b309b01
138a14485cb64
14427c8a77237
152171cd61501
hex119b9bed6f1

1210002102001 has 96 divisors (see below), whose sum is σ = 1596486205440. Its totient is φ = 905889600000.

The previous prime is 1210002101933. The next prime is 1210002102019. The reversal of 1210002102001 is 1002012000121.

It is not a de Polignac number, because 1210002102001 - 223 = 1209993713393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1210002102061) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2807429256 + ... + 2807429686.

It is an arithmetic number, because the mean of its divisors is an integer number (16630064640).

Almost surely, 21210002102001 is an apocalyptic number.

1210002102001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1210002102001 is a deficient number, since it is larger than the sum of its proper divisors (386484103439).

1210002102001 is a wasteful number, since it uses less digits than its factorization.

1210002102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1210002102001 its reverse (1002012000121), we get a palindrome (2212014102122).

The spelling of 1210002102001 in words is "one trillion, two hundred ten billion, two million, one hundred two thousand, one".

Divisors: 1 7 11 31 49 77 217 341 401 419 431 539 1519 2387 2807 2933 3017 4411 4609 4741 12431 12989 13361 16709 19649 20531 21119 30877 32263 33187 87017 90923 93527 136741 142879 146971 168019 172831 180589 216139 225841 232309 609119 636461 654689 957187 1000153 1028797 1176133 1209817 1264123 1848209 1901141 1986479 5208589 5357761 5598259 6700309 7001071 7201579 8232931 8468719 8848861 12937463 13307987 13905353 36460123 37504327 39187813 57294479 58935371 61580849 72416189 90562241 93155909 97337471 255220861 262530289 274314691 401061353 412547597 431065943 506913323 796578079 2244901859 2807429471 2887833179 3017461601 3548393261 5576046553 15714313013 24693920449 39032325871 110000191091 172857443143 1210002102001