2012022112121 has 16 divisors (see below), whose sum is σ = 2322622458624. Its totient is φ = 1707251019264.

The previous prime is 2012022112117. The next prime is 2012022112171. The reversal of 2012022112121 is 1212112202102.

It is not a de Polignac number, because 2012022112121 - 2² = 2012022112117 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 2012022112121.

It is not an unprimeable number, because it can be changed into a prime (2012022112171) 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, 894356 + ... + 2196341.

It is an arithmetic number, because the mean of its divisors is an integer number (145163903664).

Almost surely, 2^{2012022112121} is an apocalyptic number.

It is an amenable number.

2012022112121 is a deficient number, since it is larger than the sum of its proper divisors (310600346503).

2012022112121 is a wasteful number, since it uses less digits than its factorization.

2012022112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091640.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2012022112121 its reverse (1212112202102), we get a palindrome (3224134314223).

The spelling of 2012022112121 in words is "two trillion, twelve billion, twenty-two million, one hundred twelve thousand, one hundred twenty-one".