12211110992 has 20 divisors (see below), whose sum is σ = 23682231636. Its totient is φ = 6099567360.

The previous prime is 12211110979. The next prime is 12211111021. The reversal of 12211110992 is 29901111221.

12211110992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3295219216 + 8915891776 = 57404^2 + 94424^2 .

It is a super-2 number, since 2×12211110992² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 357413 + ... + 390084.

Almost surely, 2^12211110992 is an apocalyptic number.

It is an amenable number.

12211110992 is a deficient number, since it is larger than the sum of its proper divisors (11471120644).

12211110992 is a wasteful number, since it uses less digits than its factorization.

12211110992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748526 (or 748520 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 12211110992 in words is "twelve billion, two hundred eleven million, one hundred ten thousand, nine hundred ninety-two".