101189209212 has 72 divisors (see below), whose sum is σ = 314810883296. Its totient is φ = 26687263104.

The previous prime is 101189209211. The next prime is 101189209243. The reversal of 101189209212 is 212902981101.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101189209211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15440743 + ... + 15447294.

Almost surely, 2^101189209212 is an apocalyptic number.

101189209212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101189209212 is an abundant number, since it is smaller than the sum of its proper divisors (213621674084).

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

101189209212 is a wasteful number, since it uses less digits than its factorization.

101189209212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30888067 (or 30888062 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The spelling of 101189209212 in words is "one hundred one billion, one hundred eighty-nine million, two hundred nine thousand, two hundred twelve".