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1212230202001 = 7131928314231741
BaseRepresentation
bin10001101000111110100…
…011001111001010010001
311021212222101222202002221
4101220332203033022101
5124330121412431001
62324520232141041
7153403123463440
oct21507643171221
94255871882087
101212230202001
11428116389955
12176b31537781
138a40b34c720
144295a94ad57
15217ed77e1a1
hex11a3e8cf291

1212230202001 has 64 divisors (see below), whose sum is σ = 1578063585280. Its totient is φ = 904280060160.

The previous prime is 1212230201999. The next prime is 1212230202047. The reversal of 1212230202001 is 1002020322121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1212230202001 - 21 = 1212230201999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212230202061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 696282991 + ... + 696284731.

It is an arithmetic number, because the mean of its divisors is an integer number (24657243520).

Almost surely, 21212230202001 is an apocalyptic number.

It is an amenable number.

1212230202001 is a deficient number, since it is larger than the sum of its proper divisors (365833383279).

1212230202001 is a wasteful number, since it uses less digits than its factorization.

1212230202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3486.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1212230202001 its reverse (1002020322121), we get a palindrome (2214250524122).

The spelling of 1212230202001 in words is "one trillion, two hundred twelve billion, two hundred thirty million, two hundred two thousand, one".

Divisors: 1 7 13 19 91 133 247 283 1423 1729 1741 1981 3679 5377 9961 12187 18499 22633 25753 27037 33079 37639 69901 129493 158431 189259 231553 351481 402709 430027 489307 492703 2460367 2477443 2818963 3010189 3448921 5235217 6405139 7651471 9361357 17342101 32206759 36646519 44835973 47071417 53560297 65529499 99469123 121697641 225447313 329499919 611928421 696283861 701116369 851883487 4283498947 4907814583 9114512797 13321211011 63801589579 93248477077 173175743143 1212230202001