102922121 has 2 divisors, whose sum is σ = 102922122. Its totient is φ = 102922120.

The previous prime is 102922103. The next prime is 102922147. The reversal of 102922121 is 121229201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96746896 + 6175225 = 9836^2 + 2485^2 .

It is a cyclic number.

It is not a de Polignac number, because 102922121 - 2²⁶ = 35813257 is a prime.

It is a super-2 number, since 2×102922121² = 21185925982277282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102922093 and 102922102.

It is not a weakly prime, because it can be changed into another prime (102922021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51461060 + 51461061.

It is an arithmetic number, because the mean of its divisors is an integer number (51461061).

Almost surely, 2^102922121 is an apocalyptic number.

It is an amenable number.

102922121 is a deficient number, since it is larger than the sum of its proper divisors (1).

102922121 is an equidigital number, since it uses as much as digits as its factorization.

102922121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 102922121 is about 10145.0540166132. The cubic root of 102922121 is about 468.6366420762.

The spelling of 102922121 in words is "one hundred two million, nine hundred twenty-two thousand, one hundred twenty-one".