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1212102002001 = 31136730363697
BaseRepresentation
bin10001101000110110111…
…010001100010101010001
311021212122110202111202210
4101220312322030111101
5124324341103031001
62324455412302333
7153400006010502
oct21506672142521
94255573674683
101212102002001
1142805aa87340
12176ab66119a9
138a3ba914337
14429478d8ba9
15217e23a8dd6
hex11a36e8c551

1212102002001 has 8 divisors (see below), whose sum is σ = 1763057457504. Its totient is φ = 734607273920.

The previous prime is 1212102001997. The next prime is 1212102002029. The reversal of 1212102002001 is 1002002012121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212102002001 - 22 = 1212102001997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1212102002051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18365181816 + ... + 18365181881.

It is an arithmetic number, because the mean of its divisors is an integer number (220382182188).

Almost surely, 21212102002001 is an apocalyptic number.

1212102002001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212102002001 is a deficient number, since it is larger than the sum of its proper divisors (550955455503).

1212102002001 is a wasteful number, since it uses less digits than its factorization.

1212102002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36730363711.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1212102002001 its reverse (1002002012121), we get a palindrome (2214104014122).

The spelling of 1212102002001 in words is "one trillion, two hundred twelve billion, one hundred two million, two thousand, one".

Divisors: 1 3 11 33 36730363697 110191091091 404034000667 1212102002001