22111443992 has 64 divisors (see below), whose sum is σ = 49056567840. Its totient is φ = 9228697600.

The previous prime is 22111443973. The next prime is 22111444001. The reversal of 22111443992 is 29934411122.

It is a super-2 number, since 2×22111443992² (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 15 ways as a sum of consecutive naturals, for example, 118913 + ... + 241584.

Almost surely, 2^22111443992 is an apocalyptic number.

22111443992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22111443992 is an abundant number, since it is smaller than the sum of its proper divisors (26945123848).

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

22111443992 is a wasteful number, since it uses less digits than its factorization.

22111443992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360572 (or 360568 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The spelling of 22111443992 in words is "twenty-two billion, one hundred eleven million, four hundred forty-three thousand, nine hundred ninety-two".