2012202220121 has 16 divisors (see below), whose sum is σ = 2032484520000. Its totient is φ = 1991998008000.

The previous prime is 2012202220103. The next prime is 2012202220123. The reversal of 2012202220121 is 1210222022102.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012202220121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2012202220121.

It is not an unprimeable number, because it can be changed into a prime (2012202220123) 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, 203227271 + ... + 203237171.

It is an arithmetic number, because the mean of its divisors is an integer number (127030282500).

Almost surely, 2^{2012202220121} is an apocalyptic number.

It is an amenable number.

2012202220121 is a deficient number, since it is larger than the sum of its proper divisors (20282299879).

2012202220121 is a wasteful number, since it uses less digits than its factorization.

2012202220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13640.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2012202220121 its reverse (1210222022102), we get a palindrome (3222424242223).

The spelling of 2012202220121 in words is "two trillion, twelve billion, two hundred two million, two hundred twenty thousand, one hundred twenty-one".