202111100212 has 48 divisors (see below), whose sum is σ = 411507976320. Its totient is φ = 85060910592.

The previous prime is 202111100183. The next prime is 202111100227. The reversal of 202111100212 is 212001111202.

It is a junction number, because it is equal to n+sod(n) for n = 202111100192 and 202111100201.

It is a congruent number.

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, 1510168 + ... + 1638544.

It is an arithmetic number, because the mean of its divisors is an integer number (8573082840).

Almost surely, 2^202111100212 is an apocalyptic number.

It is an amenable number.

202111100212 is an abundant number, since it is smaller than the sum of its proper divisors (209396876108).

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

202111100212 is a wasteful number, since it uses less digits than its factorization.

202111100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129400 (or 129398 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 202111100212 its reverse (212001111202), we get a palindrome (414112211414).

The spelling of 202111100212 in words is "two hundred two billion, one hundred eleven million, one hundred thousand, two hundred twelve".