22118230900 has 18 divisors (see below), whose sum is σ = 47996561270. Its totient is φ = 8847292320.

The previous prime is 22118230873. The next prime is 22118230907. The reversal of 22118230900 is 903281122.

It can be written as a sum of positive squares in 3 ways, for example, as 192321424 + 21925909476 = 13868^2 + 148074^2 .

It is a super-2 number, since 2×22118230900² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22118230907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110591055 + ... + 110591254.

Almost surely, 2^22118230900 is an apocalyptic number.

22118230900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22118230900 is an abundant number, since it is smaller than the sum of its proper divisors (25878330370).

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

22118230900 is a wasteful number, since it uses less digits than its factorization.

22118230900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221182323 (or 221182316 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 22118230900 in words is "twenty-two billion, one hundred eighteen million, two hundred thirty thousand, nine hundred".