122230021 has 4 divisors (see below), whose sum is σ = 128663200. Its totient is φ = 115796844.

The previous prime is 122229977. The next prime is 122230057. The reversal of 122230021 is 120032221.

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 122230021 - 2⁹ = 122229509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122229983 and 122230010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122230081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3216561 + ... + 3216598.

It is an arithmetic number, because the mean of its divisors is an integer number (32165800).

Almost surely, 2^122230021 is an apocalyptic number.

It is an amenable number.

122230021 is a deficient number, since it is larger than the sum of its proper divisors (6433179).

122230021 is an equidigital number, since it uses as much as digits as its factorization.

122230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433178.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 122230021 is about 11055.7686752211. The cubic root of 122230021 is about 496.2790727574.

Adding to 122230021 its reverse (120032221), we get a palindrome (242262242).

The spelling of 122230021 in words is "one hundred twenty-two million, two hundred thirty thousand, twenty-one".