212102220112 has 40 divisors (see below), whose sum is σ = 413085005312. Its totient is φ = 105500102400.

The previous prime is 212102220107. The next prime is 212102220119. The reversal of 212102220112 is 211022201212.

It is a happy number.

It is a super-3 number, since 3×212102220112³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212102220119) 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, 8011537 + ... + 8037967.

Almost surely, 2^212102220112 is an apocalyptic number.

It is an amenable number.

212102220112 is a deficient number, since it is larger than the sum of its proper divisors (200982785200).

212102220112 is a wasteful number, since it uses less digits than its factorization.

212102220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29027 (or 29021 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212102220112 its reverse (211022201212), we get a palindrome (423124421324).

The spelling of 212102220112 in words is "two hundred twelve billion, one hundred two million, two hundred twenty thousand, one hundred twelve".