101022313212 has 72 divisors (see below), whose sum is σ = 264912614512. Its totient is φ = 33662304000.

The previous prime is 101022313199. The next prime is 101022313229. The reversal of 101022313212 is 212313220101.

101022313212 is a `hidden beast` number, since 10 + 102 + 231 + 321 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3016962 + ... + 3050262.

Almost surely, 2^101022313212 is an apocalyptic number.

101022313212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101022313212 is an abundant number, since it is smaller than the sum of its proper divisors (163890301300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101022313212 is a wasteful number, since it uses less digits than its factorization.

101022313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36441 (or 36427 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 101022313212 its reverse (212313220101), we get a palindrome (313335533313).

The spelling of 101022313212 in words is "one hundred one billion, twenty-two million, three hundred thirteen thousand, two hundred twelve".