122310021 has 8 divisors (see below), whose sum is σ = 170170560. Its totient is φ = 77994752.

The previous prime is 122309989. The next prime is 122310029. The reversal of 122310021 is 120013221.

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

It is a cyclic number.

It is not a de Polignac number, because 122310021 - 2⁵ = 122309989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122309979 and 122310006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122310029) 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 in 7 ways as a sum of consecutive naturals, for example, 886236 + ... + 886373.

It is an arithmetic number, because the mean of its divisors is an integer number (21271320).

Almost surely, 2^122310021 is an apocalyptic number.

It is an amenable number.

122310021 is a deficient number, since it is larger than the sum of its proper divisors (47860539).

122310021 is a wasteful number, since it uses less digits than its factorization.

122310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772635.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 122310021 is about 11059.3861041199. The cubic root of 122310021 is about 496.3873213062.

Adding to 122310021 its reverse (120013221), we get a palindrome (242323242).

The spelling of 122310021 in words is "one hundred twenty-two million, three hundred ten thousand, twenty-one".