212210211210112 has 16 divisors (see below), whose sum is σ = 422762530145400. Its totient is φ = 106105105604992.

The previous prime is 212210211210077. The next prime is 212210211210131. The reversal of 212210211210112 is 211012112012212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×212210211210112² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212210211210112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 828946137412 + ... + 828946137667.

Almost surely, 2^{212210211210112} is an apocalyptic number.

It is an amenable number.

212210211210112 is a deficient number, since it is larger than the sum of its proper divisors (210552318935288).

212210211210112 is an equidigital number, since it uses as much as digits as its factorization.

212210211210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657892275093 (or 1657892275081 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212210211210112 its reverse (211012112012212), we get a palindrome (423222323222324).

The spelling of 212210211210112 in words is "two hundred twelve trillion, two hundred ten billion, two hundred eleven million, two hundred ten thousand, one hundred twelve".