122535021 has 8 divisors (see below), whose sum is σ = 186720064. Its totient is φ = 70020000.

The previous prime is 122535011. The next prime is 122535029. The reversal of 122535021 is 120535221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122535021 - 2⁹ = 122534509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5835001 = 122535021 / (1 + 2 + 2 + 5 + 3 + 5 + 0 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122535029) 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 7 ways as a sum of consecutive naturals, for example, 2917480 + ... + 2917521.

It is an arithmetic number, because the mean of its divisors is an integer number (23340008).

Almost surely, 2^122535021 is an apocalyptic number.

It is an amenable number.

122535021 is a deficient number, since it is larger than the sum of its proper divisors (64185043).

122535021 is an equidigital number, since it uses as much as digits as its factorization.

122535021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5835011.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 122535021 is about 11069.5537850448. The cubic root of 122535021 is about 496.6915175070.

The spelling of 122535021 in words is "one hundred twenty-two million, five hundred thirty-five thousand, twenty-one".