922204421 has 2 divisors, whose sum is σ = 922204422. Its totient is φ = 922204420.

The previous prime is 922204411. The next prime is 922204429. The reversal of 922204421 is 124402229.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 869424196 + 52780225 = 29486^2 + 7265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-922204421 is a prime.

It is a super-2 number, since 2×922204421² = 1700921988223890482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (922204429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461102210 + 461102211.

It is an arithmetic number, because the mean of its divisors is an integer number (461102211).

Almost surely, 2^922204421 is an apocalyptic number.

It is an amenable number.

922204421 is a deficient number, since it is larger than the sum of its proper divisors (1).

922204421 is an equidigital number, since it uses as much as digits as its factorization.

922204421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 922204421 is about 30367.8188383690. The cubic root of 922204421 is about 973.3650164699.

The spelling of 922204421 in words is "nine hundred twenty-two million, two hundred four thousand, four hundred twenty-one".