22265220747 has 32 divisors (see below), whose sum is σ = 37799829504. Its totient is φ = 11320250400.

The previous prime is 22265220721. The next prime is 22265220767. The reversal of 22265220747 is 74702256222.

It is not a de Polignac number, because 22265220747 - 2¹² = 22265216651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22265220707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1014529 + ... + 1036242.

It is an arithmetic number, because the mean of its divisors is an integer number (1181244672).

Almost surely, 2^22265220747 is an apocalyptic number.

22265220747 is a deficient number, since it is larger than the sum of its proper divisors (15534608757).

22265220747 is a wasteful number, since it uses less digits than its factorization.

22265220747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050839.

The product of its (nonzero) digits is 188160, while the sum is 39.

Adding to 22265220747 its reverse (74702256222), we get a palindrome (96967476969).

The spelling of 22265220747 in words is "twenty-two billion, two hundred sixty-five million, two hundred twenty thousand, seven hundred forty-seven".