101022331212 has 72 divisors (see below), whose sum is σ = 286105873872. Its totient is φ = 29785449600.

The previous prime is 101022331199. The next prime is 101022331253. The reversal of 101022331212 is 212133220101.

101022331212 is a `hidden beast` number, since 101 + 0 + 22 + 331 + 212 = 666.

It is a super-2 number, since 2×101022331212² (a number of 23 digits) contains 22 as substring.

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

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, 3432739 + ... + 3462042.

Almost surely, 2^101022331212 is an apocalyptic number.

101022331212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101022331212 is an abundant number, since it is smaller than the sum of its proper divisors (185083542660).

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

101022331212 is a wasteful number, since it uses less digits than its factorization.

101022331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6894839 (or 6894834 counting only the distinct ones).

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

Adding to 101022331212 its reverse (212133220101), we get a palindrome (313155551313).

Subtracting 101022331212 from its reverse (212133220101), we obtain a square (111110888889 = 333333²).

It can be divided in two parts, 101022 and 331212, that added together give a palindrome (432234).

The spelling of 101022331212 in words is "one hundred one billion, twenty-two million, three hundred thirty-one thousand, two hundred twelve".