211212102222212 has 48 divisors (see below), whose sum is σ = 478861446349440. Its totient is φ = 79158728881152.

The previous prime is 211212102222161. The next prime is 211212102222239. The reversal of 211212102222212 is 212222201212112.

It is a super-2 number, since 2×211212102222212² (a number of 29 digits) contains 22 as substring.

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, 15269809613 + ... + 15269823444.

It is an arithmetic number, because the mean of its divisors is an integer number (9976280132280).

Almost surely, 2^{211212102222212} is an apocalyptic number.

It is an amenable number.

211212102222212 is an abundant number, since it is smaller than the sum of its proper divisors (267649344127228).

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

211212102222212 is a wasteful number, since it uses less digits than its factorization.

211212102222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30539633100 (or 30539633098 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 211212102222212 its reverse (212222201212112), we get a palindrome (423434303434324).

The spelling of 211212102222212 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred two million, two hundred twenty-two thousand, two hundred twelve".