922002121 has 2 divisors, whose sum is σ = 922002122. Its totient is φ = 922002120.

The previous prime is 922002119. The next prime is 922002163. The reversal of 922002121 is 121200229.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 920272896 + 1729225 = 30336^2 + 1315^2 .

It is a cyclic number.

It is not a de Polignac number, because 922002121 - 2¹ = 922002119 is a prime.

It is a super-2 number, since 2×922002121² = 1700175822256997282, which contains 22 as substring.

Together with 922002119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (922002101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461001060 + 461001061.

It is an arithmetic number, because the mean of its divisors is an integer number (461001061).

Almost surely, 2^922002121 is an apocalyptic number.

It is an amenable number.

922002121 is a deficient number, since it is larger than the sum of its proper divisors (1).

922002121 is an equidigital number, since it uses as much as digits as its factorization.

922002121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 922002121 is about 30364.4878270654. The cubic root of 922002121 is about 973.2938369719.

The spelling of 922002121 in words is "nine hundred twenty-two million, two thousand, one hundred twenty-one".