22287504100 has 27 divisors (see below), whose sum is σ = 48367123707. Its totient is φ = 8914404480.

The previous prime is 22287504079. The next prime is 22287504103. The reversal of 22287504100 is 140578222.

It is a happy number.

The square root of 22287504100 is 149290.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1526152356 + 20761351744 = 39066^2 + 144088^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22287504103) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1485436 + ... + 1500364.

Almost surely, 2^22287504100 is an apocalyptic number.

22287504100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

22287504100 is the 149290-th square number.

It is an amenable number.

22287504100 is an abundant number, since it is smaller than the sum of its proper divisors (26079619607).

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

22287504100 is an frugal number, since it uses more digits than its factorization.

22287504100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29872 (or 14936 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The spelling of 22287504100 in words is "twenty-two billion, two hundred eighty-seven million, five hundred four thousand, one hundred".