211113220212 has 72 divisors (see below), whose sum is σ = 566909982912. Its totient is φ = 68654692800.

The previous prime is 211113220193. The next prime is 211113220237. The reversal of 211113220212 is 212022311112.

211113220212 is a `hidden beast` number, since 21 + 111 + 322 + 0 + 212 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2608864 + ... + 2688567.

Almost surely, 2^211113220212 is an apocalyptic number.

It is an amenable number.

211113220212 is an abundant number, since it is smaller than the sum of its proper divisors (355796762700).

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

211113220212 is a wasteful number, since it uses less digits than its factorization.

211113220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5297491 (or 5297477 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 211113220212 its reverse (212022311112), we get a palindrome (423135531324).

The spelling of 211113220212 in words is "two hundred eleven billion, one hundred thirteen million, two hundred twenty thousand, two hundred twelve".