20210211112212 has 36 divisors (see below), whose sum is σ = 55731188219616. Its totient is φ = 6124306397520.

The previous prime is 20210211112193. The next prime is 20210211112213. The reversal of 20210211112212 is 21221111201202.

20210211112212 is a `hidden beast` number, since 20 + 210 + 211 + 1 + 1 + 221 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210211112213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25517942928 + ... + 25517943719.

It is an arithmetic number, because the mean of its divisors is an integer number (1548088561656).

Almost surely, 2^{20210211112212} is an apocalyptic number.

20210211112212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20210211112212 is an abundant number, since it is smaller than the sum of its proper divisors (35520977107404).

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

20210211112212 is a wasteful number, since it uses less digits than its factorization.

20210211112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51035886668 (or 51035886663 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20210211112212 its reverse (21221111201202), we get a palindrome (41431322313414).

The spelling of 20210211112212 in words is "twenty trillion, two hundred ten billion, two hundred eleven million, one hundred twelve thousand, two hundred twelve".