22270387621 has 2 divisors, whose sum is σ = 22270387622. Its totient is φ = 22270387620.

The previous prime is 22270387603. The next prime is 22270387669. The reversal of 22270387621 is 12678307222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12312343521 + 9958044100 = 110961^2 + 99790^2 .

It is a cyclic number.

It is not a de Polignac number, because 22270387621 - 2⁵ = 22270387589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22270387681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11135193810 + 11135193811.

It is an arithmetic number, because the mean of its divisors is an integer number (11135193811).

Almost surely, 2^22270387621 is an apocalyptic number.

It is an amenable number.

22270387621 is a deficient number, since it is larger than the sum of its proper divisors (1).

22270387621 is an equidigital number, since it uses as much as digits as its factorization.

22270387621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 22270387621 in words is "twenty-two billion, two hundred seventy million, three hundred eighty-seven thousand, six hundred twenty-one".