212100101983 has 16 divisors (see below), whose sum is σ = 264454341120. Its totient is φ = 165261650400.

The previous prime is 212100101981. The next prime is 212100102017. The reversal of 212100101983 is 389101001212.

It is not a de Polignac number, because 212100101983 - 2¹ = 212100101981 is a prime.

It is a super-2 number, since 2×212100101983² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100101981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1164933 + ... + 1334641.

It is an arithmetic number, because the mean of its divisors is an integer number (16528396320).

Almost surely, 2^212100101983 is an apocalyptic number.

212100101983 is a deficient number, since it is larger than the sum of its proper divisors (52354239137).

212100101983 is a wasteful number, since it uses less digits than its factorization.

212100101983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185958.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 212100101983 in words is "two hundred twelve billion, one hundred million, one hundred one thousand, nine hundred eighty-three".