2211210112212 has 36 divisors (see below), whose sum is σ = 5589582442080. Its totient is φ = 737052280272.

The previous prime is 2211210112171. The next prime is 2211210112213. The reversal of 2211210112212 is 2122110121122.

2211210112212 is a `hidden beast` number, since 221 + 1 + 210 + 11 + 221 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211210112213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 820239 + ... + 2257257.

Almost surely, 2^{2211210112212} is an apocalyptic number.

It is an amenable number.

2211210112212 is an abundant number, since it is smaller than the sum of its proper divisors (3378372329868).

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

2211210112212 is a wasteful number, since it uses less digits than its factorization.

2211210112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479772 (or 1479767 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2211210112212 its reverse (2122110121122), we get a palindrome (4333320233334).

The spelling of 2211210112212 in words is "two trillion, two hundred eleven billion, two hundred ten million, one hundred twelve thousand, two hundred twelve".