201121102012012 has 24 divisors (see below), whose sum is σ = 433183912026656. Its totient is φ = 79564392004608.

The previous prime is 201121102011997. The next prime is 201121102012021. The reversal of 201121102012012 is 210210201121102.

It is a super-2 number, since 2×201121102012012² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276265249653 + ... + 276265250380.

Almost surely, 2^{201121102012012} is an apocalyptic number.

It is an amenable number.

201121102012012 is an abundant number, since it is smaller than the sum of its proper divisors (232062810014644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201121102012012 is a wasteful number, since it uses less digits than its factorization.

201121102012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552530500057 (or 552530500055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201121102012012 its reverse (210210201121102), we get a palindrome (411331303133114).

The spelling of 201121102012012 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred two million, twelve thousand, twelve".