22022250640651 has 4 divisors (see below), whose sum is σ = 22240292726304. Its totient is φ = 21804208555000.

The previous prime is 22022250640631. The next prime is 22022250640717. The reversal of 22022250640651 is 15604605222022.

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 22022250640651 - 2²⁹ = 22021713769739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22022250640651.

It is not an unprimeable number, because it can be changed into a prime (22022250640631) 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, 109021042675 + ... + 109021042876.

It is an arithmetic number, because the mean of its divisors is an integer number (5560073181576).

Almost surely, 2^{22022250640651} is an apocalyptic number.

22022250640651 is a deficient number, since it is larger than the sum of its proper divisors (218042085653).

22022250640651 is a wasteful number, since it uses less digits than its factorization.

22022250640651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218042085652.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 22022250640651 its reverse (15604605222022), we get a palindrome (37626855862673).

The spelling of 22022250640651 in words is "twenty-two trillion, twenty-two billion, two hundred fifty million, six hundred forty thousand, six hundred fifty-one".