2121202112012 has 12 divisors (see below), whose sum is σ = 3726547681080. Its totient is φ = 1056474203136.

The previous prime is 2121202111997. The next prime is 2121202112033. The reversal of 2121202112012 is 2102112021212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031712062 + ... + 1031714117.

It is an arithmetic number, because the mean of its divisors is an integer number (310545640090).

Almost surely, 2^{2121202112012} is an apocalyptic number.

It is an amenable number.

2121202112012 is a deficient number, since it is larger than the sum of its proper divisors (1605345569068).

2121202112012 is a wasteful number, since it uses less digits than its factorization.

2121202112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063426440 (or 2063426438 counting only the distinct ones).

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

Adding to 2121202112012 its reverse (2102112021212), we get a palindrome (4223314133224).

The spelling of 2121202112012 in words is "two trillion, one hundred twenty-one billion, two hundred two million, one hundred twelve thousand, twelve".