20121012201201 has 16 divisors (see below), whose sum is σ = 28193867511744. Its totient is φ = 12747944873664.

The previous prime is 20121012201179. The next prime is 20121012201233. The reversal of 20121012201201 is 10210221012102.

It is not a de Polignac number, because 20121012201201 - 2²³ = 20121003812593 is a prime.

It is a super-2 number, since 2×20121012201201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20121012241201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2107790346 + ... + 2107799891.

It is an arithmetic number, because the mean of its divisors is an integer number (1762116719484).

Almost surely, 2^{20121012201201} is an apocalyptic number.

It is an amenable number.

20121012201201 is a deficient number, since it is larger than the sum of its proper divisors (8072855310543).

20121012201201 is a wasteful number, since it uses less digits than its factorization.

20121012201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215590320.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20121012201201 its reverse (10210221012102), we get a palindrome (30331233213303).

The spelling of 20121012201201 in words is "twenty trillion, one hundred twenty-one billion, twelve million, two hundred one thousand, two hundred one".