212021011012112 has 40 divisors (see below), whose sum is σ = 410982262743360. Its totient is φ = 105961083304320.

The previous prime is 212021011011899. The next prime is 212021011012117. The reversal of 212021011012112 is 211210110120212.

It is a super-2 number, since 2×212021011012112² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212021011012117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310303589 + ... + 310986107.

It is an arithmetic number, because the mean of its divisors is an integer number (10274556568584).

Almost surely, 2^{212021011012112} is an apocalyptic number.

It is an amenable number.

212021011012112 is a deficient number, since it is larger than the sum of its proper divisors (198961251731248).

212021011012112 is a wasteful number, since it uses less digits than its factorization.

212021011012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691551 (or 691545 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212021011012112 its reverse (211210110120212), we get a palindrome (423231121132324).

The spelling of 212021011012112 in words is "two hundred twelve trillion, twenty-one billion, eleven million, twelve thousand, one hundred twelve".