22020547490 has 16 divisors (see below), whose sum is σ = 39661228152. Its totient is φ = 8802831744.

The previous prime is 22020547427. The next prime is 22020547501. The reversal of 22020547490 is 9474502022.

It can be written as a sum of positive squares in 4 ways, for example, as 5930386081 + 16090161409 = 77009^2 + 126847^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22020547490.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656219 + ... + 688958.

Almost surely, 2^22020547490 is an apocalyptic number.

22020547490 is a deficient number, since it is larger than the sum of its proper divisors (17640680662).

22020547490 is a wasteful number, since it uses less digits than its factorization.

22020547490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346821.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 22020547490 in words is "twenty-two billion, twenty million, five hundred forty-seven thousand, four hundred ninety".