122430720 has 72 divisors (see below), whose sum is σ = 391025376. Its totient is φ = 32647168.

The previous prime is 122430713. The next prime is 122430731. The reversal of 122430720 is 27034221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12102 + ... + 19781.

It is an arithmetic number, because the mean of its divisors is an integer number (5430908).

Almost surely, 2^122430720 is an apocalyptic number.

122430720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122430720 is an abundant number, since it is smaller than the sum of its proper divisors (268594656).

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

122430720 is an equidigital number, since it uses as much as digits as its factorization.

122430720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31907 (or 31893 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 122430720 is about 11064.8416165800. The cubic root of 122430720 is about 496.5505506571.

Adding to 122430720 its reverse (27034221), we get a palindrome (149464941).

The spelling of 122430720 in words is "one hundred twenty-two million, four hundred thirty thousand, seven hundred twenty".