101212213112 has 16 divisors (see below), whose sum is σ = 190066221360. Its totient is φ = 50527887424.

The previous prime is 101212213097. The next prime is 101212213133. The reversal of 101212213112 is 211312212101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9771893 + ... + 9782244.

It is an arithmetic number, because the mean of its divisors is an integer number (11879138835).

Almost surely, 2^101212213112 is an apocalyptic number.

It is an amenable number.

101212213112 is a deficient number, since it is larger than the sum of its proper divisors (88854008248).

101212213112 is a wasteful number, since it uses less digits than its factorization.

101212213112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19554790 (or 19554786 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 101212213112 its reverse (211312212101), we get a palindrome (312524425213).

The spelling of 101212213112 in words is "one hundred one billion, two hundred twelve million, two hundred thirteen thousand, one hundred twelve".