922220639 has 2 divisors, whose sum is σ = 922220640. Its totient is φ = 922220638.

The previous prime is 922220623. The next prime is 922220647. The reversal of 922220639 is 936022229.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 922220639 - 2⁴ = 922220623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 922220599 and 922220608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (922220609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461110319 + 461110320.

It is an arithmetic number, because the mean of its divisors is an integer number (461110320).

Almost surely, 2^922220639 is an apocalyptic number.

922220639 is a deficient number, since it is larger than the sum of its proper divisors (1).

922220639 is an equidigital number, since it uses as much as digits as its factorization.

922220639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 922220639 is about 30368.0858632875. The cubic root of 922220639 is about 973.3707223419.

The spelling of 922220639 in words is "nine hundred twenty-two million, two hundred twenty thousand, six hundred thirty-nine".