2210122111212 has 54 divisors (see below), whose sum is σ = 5772727120524. Its totient is φ = 712942605360.

The previous prime is 2210122111117. The next prime is 2210122111231. The reversal of 2210122111212 is 2121112210122.

2210122111212 is a `hidden beast` number, since 221 + 0 + 1 + 221 + 11 + 212 = 666.

It is a super-2 number, since 2×2210122111212² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 31907278 + ... + 31976469.

Almost surely, 2^{2210122111212} is an apocalyptic number.

It is an amenable number.

2210122111212 is an abundant number, since it is smaller than the sum of its proper divisors (3562605009312).

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

2210122111212 is a wasteful number, since it uses less digits than its factorization.

2210122111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63883819 (or 63883783 counting only the distinct ones).

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

Adding to 2210122111212 its reverse (2121112210122), we get a palindrome (4331234321334).

The spelling of 2210122111212 in words is "two trillion, two hundred ten billion, one hundred twenty-two million, one hundred eleven thousand, two hundred twelve".