122400403320 has 128 divisors (see below), whose sum is σ = 399075969600. Its totient is φ = 29852872704.

The previous prime is 122400403319. The next prime is 122400403343. The reversal of 122400403320 is 23304004221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189877 + ... + 529956.

Almost surely, 2^122400403320 is an apocalyptic number.

122400403320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122400403320 is an abundant number, since it is smaller than the sum of its proper divisors (276675566280).

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

122400403320 is a wasteful number, since it uses less digits than its factorization.

122400403320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719969 (or 719965 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 122400403320 its reverse (23304004221), we get a palindrome (145704407541).

The spelling of 122400403320 in words is "one hundred twenty-two billion, four hundred million, four hundred three thousand, three hundred twenty".