122922621 has 12 divisors (see below), whose sum is σ = 182354172. Its totient is φ = 79733376.

The previous prime is 122922601. The next prime is 122922629. The reversal of 122922621 is 126229221.

It is a happy number.

122922621 is a `hidden beast` number, since 12 + 2 + 9 + 22 + 621 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 83722500 + 39200121 = 9150^2 + 6261^2 .

It is not a de Polignac number, because 122922621 - 2⁹ = 122922109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122922629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184236 + ... + 184901.

It is an arithmetic number, because the mean of its divisors is an integer number (15196181).

Almost surely, 2^122922621 is an apocalyptic number.

It is an amenable number.

122922621 is a deficient number, since it is larger than the sum of its proper divisors (59431551).

122922621 is a wasteful number, since it uses less digits than its factorization.

122922621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369180 (or 369177 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 122922621 is about 11087.0474428497. The cubic root of 122922621 is about 497.2146740638.

The spelling of 122922621 in words is "one hundred twenty-two million, nine hundred twenty-two thousand, six hundred twenty-one".