20121012120201 has 16 divisors (see below), whose sum is σ = 27336368172096. Its totient is φ = 13159872130496.

The previous prime is 20121012120161. The next prime is 20121012120211. The reversal of 20121012120201 is 10202121012102.

It is a cyclic number.

It is not a de Polignac number, because 20121012120201 - 2²⁶ = 20120945011337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20121012120211) 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, 2988855 + ... + 7012508.

It is an arithmetic number, because the mean of its divisors is an integer number (1708523010756).

Almost surely, 2^{20121012120201} is an apocalyptic number.

It is an amenable number.

20121012120201 is a deficient number, since it is larger than the sum of its proper divisors (7215356051895).

20121012120201 is a wasteful number, since it uses less digits than its factorization.

20121012120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10014072.

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

Adding to 20121012120201 its reverse (10202121012102), we get a palindrome (30323133132303).

The spelling of 20121012120201 in words is "twenty trillion, one hundred twenty-one billion, twelve million, one hundred twenty thousand, two hundred one".