122575021 has 4 divisors (see below), whose sum is σ = 122601600. Its totient is φ = 122548444.

The previous prime is 122575007. The next prime is 122575051. The reversal of 122575021 is 120575221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122575021 - 2⁵ = 122574989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122575001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4381 + ... + 16258.

It is an arithmetic number, because the mean of its divisors is an integer number (30650400).

Almost surely, 2^122575021 is an apocalyptic number.

It is an amenable number.

122575021 is a deficient number, since it is larger than the sum of its proper divisors (26579).

122575021 is an equidigital number, since it uses as much as digits as its factorization.

122575021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26578.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 122575021 is about 11071.3603951818. The cubic root of 122575021 is about 496.7455578379.

The spelling of 122575021 in words is "one hundred twenty-two million, five hundred seventy-five thousand, twenty-one".