22042256651 has 4 divisors (see below), whose sum is σ = 22042838304. Its totient is φ = 22041675000.

The previous prime is 22042256603. The next prime is 22042256659. The reversal of 22042256651 is 15665224022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22042256651 - 2¹⁴ = 22042240267 is a prime.

It is a super-2 number, since 2×22042256651² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22042256659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229700 + ... + 311201.

It is an arithmetic number, because the mean of its divisors is an integer number (5510709576).

Almost surely, 2^22042256651 is an apocalyptic number.

22042256651 is a deficient number, since it is larger than the sum of its proper divisors (581653).

22042256651 is an equidigital number, since it uses as much as digits as its factorization.

22042256651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581652.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 22042256651 in words is "twenty-two billion, forty-two million, two hundred fifty-six thousand, six hundred fifty-one".