122231320 has 32 divisors (see below), whose sum is σ = 275497200. Its totient is φ = 48807808.

The previous prime is 122231299. The next prime is 122231321. The reversal of 122231320 is 23132221.

It is a junction number, because it is equal to n+sod(n) for n = 122231294 and 122231303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122231321) 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 7 ways as a sum of consecutive naturals, for example, 24042 + ... + 28678.

Almost surely, 2^122231320 is an apocalyptic number.

122231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122231320 is an abundant number, since it is smaller than the sum of its proper divisors (153265880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122231320 is a wasteful number, since it uses less digits than its factorization.

122231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5307 (or 5303 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 122231320 is about 11055.8274226762. The cubic root of 122231320 is about 496.2808308204.

Adding to 122231320 its reverse (23132221), we get a palindrome (145363541).

Subtracting from 122231320 its reverse (23132221), we obtain a palindrome (99099099).

The spelling of 122231320 in words is "one hundred twenty-two million, two hundred thirty-one thousand, three hundred twenty".