122303021 has 4 divisors (see below), whose sum is σ = 123514044. Its totient is φ = 121092000.

The previous prime is 122303011. The next prime is 122303023. The reversal of 122303021 is 120303221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112126921 + 10176100 = 10589^2 + 3190^2 .

It is a cyclic number.

It is not a de Polignac number, because 122303021 - 2²⁶ = 55194157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122302987 and 122303005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122303023) 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 3 ways as a sum of consecutive naturals, for example, 605360 + ... + 605561.

It is an arithmetic number, because the mean of its divisors is an integer number (30878511).

Almost surely, 2^122303021 is an apocalyptic number.

It is an amenable number.

122303021 is a deficient number, since it is larger than the sum of its proper divisors (1211023).

122303021 is a wasteful number, since it uses less digits than its factorization.

122303021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211022.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 122303021 is about 11059.0696263293. The cubic root of 122303021 is about 496.3778514429.

Adding to 122303021 its reverse (120303221), we get a palindrome (242606242).

It can be divided in two parts, 12230 and 3021, that added together give a palindrome (15251).

The spelling of 122303021 in words is "one hundred twenty-two million, three hundred three thousand, twenty-one".