101231011212 has 96 divisors (see below), whose sum is σ = 243907614720. Its totient is φ = 32653900800.

The previous prime is 101231011207. The next prime is 101231011223. The reversal of 101231011212 is 212110132101.

It is a junction number, because it is equal to n+sod(n) for n = 101231011191 and 101231011200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85282483 + ... + 85283669.

It is an arithmetic number, because the mean of its divisors is an integer number (2540704320).

Almost surely, 2^101231011212 is an apocalyptic number.

101231011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101231011212 is an abundant number, since it is smaller than the sum of its proper divisors (142676603508).

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

101231011212 is a wasteful number, since it uses less digits than its factorization.

101231011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111 (or 2109 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 101231011212 its reverse (212110132101), we get a palindrome (313341143313).

The spelling of 101231011212 in words is "one hundred one billion, two hundred thirty-one million, eleven thousand, two hundred twelve".