22551020443 has 12 divisors (see below), whose sum is σ = 26941816992. Its totient is φ = 18807027120.

The previous prime is 22551020411. The next prime is 22551020477. The reversal of 22551020443 is 34402015522.

It is not a de Polignac number, because 22551020443 - 2⁵ = 22551020411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22551020543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6217443 + ... + 6221068.

It is an arithmetic number, because the mean of its divisors is an integer number (2245151416).

Almost surely, 2^22551020443 is an apocalyptic number.

22551020443 is a deficient number, since it is larger than the sum of its proper divisors (4390796549).

22551020443 is a wasteful number, since it uses less digits than its factorization.

22551020443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12438562 (or 12438555 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 22551020443 its reverse (34402015522), we get a palindrome (56953035965).

The spelling of 22551020443 in words is "twenty-two billion, five hundred fifty-one million, twenty thousand, four hundred forty-three".