22221560407 has 2 divisors, whose sum is σ = 22221560408. Its totient is φ = 22221560406.

The previous prime is 22221560359. The next prime is 22221560429. The reversal of 22221560407 is 70406512222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22221560407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221560477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110780203 + 11110780204.

It is an arithmetic number, because the mean of its divisors is an integer number (11110780204).

Almost surely, 2^22221560407 is an apocalyptic number.

22221560407 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221560407 is an equidigital number, since it uses as much as digits as its factorization.

22221560407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 22221560407 in words is "twenty-two billion, two hundred twenty-one million, five hundred sixty thousand, four hundred seven".