122343521420 has 48 divisors (see below), whose sum is σ = 275337655488. Its totient is φ = 45544561920.

The previous prime is 122343521387. The next prime is 122343521459. The reversal of 122343521420 is 24125343221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3577091 + ... + 3611130.

It is an arithmetic number, because the mean of its divisors is an integer number (5736201156).

Almost surely, 2^122343521420 is an apocalyptic number.

122343521420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122343521420 is an abundant number, since it is smaller than the sum of its proper divisors (152994134068).

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

122343521420 is a wasteful number, since it uses less digits than its factorization.

122343521420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7188290 (or 7188288 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 122343521420 its reverse (24125343221), we get a palindrome (146468864641).

The spelling of 122343521420 in words is "one hundred twenty-two billion, three hundred forty-three million, five hundred twenty-one thousand, four hundred twenty".