210021112112012 has 12 divisors (see below), whose sum is σ = 367545316164936. Its totient is φ = 105008164636320.

The previous prime is 210021112112011. The next prime is 210021112112023. The reversal of 210021112112012 is 210211211120012.

It is not an unprimeable number, because it can be changed into a prime (210021112112011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597657314 + ... + 598008617.

It is an arithmetic number, because the mean of its divisors is an integer number (30628776347078).

Almost surely, 2^{210021112112012} is an apocalyptic number.

It is an amenable number.

210021112112012 is a deficient number, since it is larger than the sum of its proper divisors (157524204052924).

210021112112012 is a wasteful number, since it uses less digits than its factorization.

210021112112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195709848 (or 1195709846 counting only the distinct ones).

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

Adding to 210021112112012 its reverse (210211211120012), we get a palindrome (420232323232024).

The spelling of 210021112112012 in words is "two hundred ten trillion, twenty-one billion, one hundred twelve million, one hundred twelve thousand, twelve".