122312021 has 8 divisors (see below), whose sum is σ = 132953184. Its totient is φ = 111846960.

The previous prime is 122312009. The next prime is 122312023. The reversal of 122312021 is 120213221.

It is a happy number.

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 122312021 - 2¹⁸ = 122049877 is a prime.

It is a super-2 number, since 2×122312021² = 29920460962208882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122311987 and 122312005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122312023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42575 + ... + 45356.

It is an arithmetic number, because the mean of its divisors is an integer number (16619148).

Almost surely, 2^122312021 is an apocalyptic number.

It is an amenable number.

122312021 is a deficient number, since it is larger than the sum of its proper divisors (10641163).

122312021 is a wasteful number, since it uses less digits than its factorization.

122312021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88051.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 122312021 is about 11059.4765246824. The cubic root of 122312021 is about 496.3900269151.

Adding to 122312021 its reverse (120213221), we get a palindrome (242525242).

The spelling of 122312021 in words is "one hundred twenty-two million, three hundred twelve thousand, twenty-one".