22301474621 has 2 divisors, whose sum is σ = 22301474622. Its totient is φ = 22301474620.

The previous prime is 22301474593. The next prime is 22301474623. The reversal of 22301474621 is 12647410322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20826530596 + 1474944025 = 144314^2 + 38405^2 .

It is a cyclic number.

It is not a de Polignac number, because 22301474621 - 2¹⁸ = 22301212477 is a prime.

It is a super-2 number, since 2×22301474621² (a number of 21 digits) contains 22 as substring.

Together with 22301474623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22301474623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11150737310 + 11150737311.

It is an arithmetic number, because the mean of its divisors is an integer number (11150737311).

Almost surely, 2^22301474621 is an apocalyptic number.

It is an amenable number.

22301474621 is a deficient number, since it is larger than the sum of its proper divisors (1).

22301474621 is an equidigital number, since it uses as much as digits as its factorization.

22301474621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

Adding to 22301474621 its reverse (12647410322), we get a palindrome (34948884943).

The spelling of 22301474621 in words is "twenty-two billion, three hundred one million, four hundred seventy-four thousand, six hundred twenty-one".