22450220555 has 32 divisors (see below), whose sum is σ = 31919989248. Its totient is φ = 14837932800.

The previous prime is 22450220531. The next prime is 22450220563. The reversal of 22450220555 is 55502205422.

It is not a de Polignac number, because 22450220555 - 2¹⁰ = 22450219531 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24860 + ... + 213350.

It is an arithmetic number, because the mean of its divisors is an integer number (997499664).

Almost surely, 2^22450220555 is an apocalyptic number.

22450220555 is a deficient number, since it is larger than the sum of its proper divisors (9469768693).

22450220555 is a wasteful number, since it uses less digits than its factorization.

22450220555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188627.

The product of its (nonzero) digits is 40000, while the sum is 32.

Adding to 22450220555 its reverse (55502205422), we get a palindrome (77952425977).

The spelling of 22450220555 in words is "twenty-two billion, four hundred fifty million, two hundred twenty thousand, five hundred fifty-five".