22420151522251 has 12 divisors (see below), whose sum is σ = 26394808337352. Its totient is φ = 18985739323488.

The previous prime is 22420151522221. The next prime is 22420151522261. The reversal of 22420151522251 is 15222515102422.

It is a de Polignac number, because none of the positive numbers 2^k-22420151522251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22420151522201) 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, 2756346010 + ... + 2756354143.

It is an arithmetic number, because the mean of its divisors is an integer number (2199567361446).

Almost surely, 2^{22420151522251} is an apocalyptic number.

22420151522251 is a deficient number, since it is larger than the sum of its proper divisors (3974656815101).

22420151522251 is an equidigital number, since it uses as much as digits as its factorization.

22420151522251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5512700250 (or 5512700243 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 34.

Adding to 22420151522251 its reverse (15222515102422), we get a palindrome (37642666624673).

The spelling of 22420151522251 in words is "twenty-two trillion, four hundred twenty billion, one hundred fifty-one million, five hundred twenty-two thousand, two hundred fifty-one".