122510353420 has 48 divisors (see below), whose sum is σ = 316642148928. Its totient is φ = 38772506880.

The previous prime is 122510353363. The next prime is 122510353423. The reversal of 122510353420 is 24353015221.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (122510353423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33654871 + ... + 33658510.

It is an arithmetic number, because the mean of its divisors is an integer number (6596711436).

Almost surely, 2^122510353420 is an apocalyptic number.

122510353420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122510353420 is an abundant number, since it is smaller than the sum of its proper divisors (194131795508).

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

122510353420 is a wasteful number, since it uses less digits than its factorization.

122510353420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67313410 (or 67313408 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 122510353420 its reverse (24353015221), we get a palindrome (146863368641).

The spelling of 122510353420 in words is "one hundred twenty-two billion, five hundred ten million, three hundred fifty-three thousand, four hundred twenty".