22012443000 has 96 divisors (see below), whose sum is σ = 74402087760. Its totient is φ = 5869982400.

The previous prime is 22012442999. The next prime is 22012443029. The reversal of 22012443000 is 34421022.

22012443000 is a `hidden beast` number, since 220 + 1 + 2 + 443 + 0 + 0 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1213914 + ... + 1231913.

Almost surely, 2^22012443000 is an apocalyptic number.

22012443000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22012443000 is an abundant number, since it is smaller than the sum of its proper divisors (52389644760).

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

22012443000 is a wasteful number, since it uses less digits than its factorization.

22012443000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445854 (or 2445837 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22012443000 its reverse (34421022), we get a palindrome (22046864022).

The spelling of 22012443000 in words is "twenty-two billion, twelve million, four hundred forty-three thousand".