211121111210212 has 12 divisors (see below), whose sum is σ = 422242222420480. Its totient is φ = 90480476232936.

The previous prime is 211121111210209. The next prime is 211121111210213. The reversal of 211121111210212 is 212012111121112.

211121111210212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 211121111210212.

It is not an unprimeable number, because it can be changed into a prime (211121111210213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3770019843012 + ... + 3770019843067.

Almost surely, 2^{211121111210212} is an apocalyptic number.

It is an amenable number.

211121111210212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

211121111210212 is a wasteful number, since it uses less digits than its factorization.

211121111210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7540039686090 (or 7540039686088 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 211121111210212 its reverse (212012111121112), we get a palindrome (423133222331324).

The spelling of 211121111210212 in words is "two hundred eleven trillion, one hundred twenty-one billion, one hundred eleven million, two hundred ten thousand, two hundred twelve".