22620266251 has 32 divisors (see below), whose sum is σ = 27766126080. Its totient is φ = 18179884800.

The previous prime is 22620266219. The next prime is 22620266269. The reversal of 22620266251 is 15266202622.

It is not a de Polignac number, because 22620266251 - 2⁵ = 22620266219 is a prime.

It is a super-2 number, since 2×22620266251² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22620266051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139701 + ... + 254473.

It is an arithmetic number, because the mean of its divisors is an integer number (867691440).

Almost surely, 2^22620266251 is an apocalyptic number.

22620266251 is a deficient number, since it is larger than the sum of its proper divisors (5145859829).

22620266251 is a wasteful number, since it uses less digits than its factorization.

22620266251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114867.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 22620266251 its reverse (15266202622), we get a palindrome (37886468873).

The spelling of 22620266251 in words is "twenty-two billion, six hundred twenty million, two hundred sixty-six thousand, two hundred fifty-one".