20200111212 has 48 divisors (see below), whose sum is σ = 52532807040. Its totient is φ = 6003747072.

The previous prime is 20200111181. The next prime is 20200111223. The reversal of 20200111212 is 21211100202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2601918 + ... + 2609669.

It is an arithmetic number, because the mean of its divisors is an integer number (1094433480).

Almost surely, 2^20200111212 is an apocalyptic number.

It is an amenable number.

20200111212 is an abundant number, since it is smaller than the sum of its proper divisors (32332695828).

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

20200111212 is a wasteful number, since it uses less digits than its factorization.

20200111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211630 (or 5211628 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20200111212 its reverse (21211100202), we get a palindrome (41411211414).

The spelling of 20200111212 in words is "twenty billion, two hundred million, one hundred eleven thousand, two hundred twelve".