211221323122112 has 28 divisors (see below), whose sum is σ = 423059530963320. Its totient is φ = 104623646029056.

The previous prime is 211221323122109. The next prime is 211221323122129.

211221323122112 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×211221323122112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15422110787 + ... + 15422124482.

Almost surely, 2^{211221323122112} is an apocalyptic number.

It is an amenable number.

211221323122112 is an abundant number, since it is smaller than the sum of its proper divisors (211838207841208).

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

211221323122112 is a wasteful number, since it uses less digits than its factorization.

211221323122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30844235388 (or 30844235378 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The spelling of 211221323122112 in words is "two hundred eleven trillion, two hundred twenty-one billion, three hundred twenty-three million, one hundred twenty-two thousand, one hundred twelve".