122120032420 has 12 divisors (see below), whose sum is σ = 256452068124. Its totient is φ = 48848012960.

The previous prime is 122120032399. The next prime is 122120032459. The reversal of 122120032420 is 24230021221.

It can be written as a sum of positive squares in 2 ways, for example, as 55748876544 + 66371155876 = 236112^2 + 257626^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3053000791 + ... + 3053000830.

It is an arithmetic number, because the mean of its divisors is an integer number (21371005677).

Almost surely, 2^122120032420 is an apocalyptic number.

122120032420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122120032420 is an abundant number, since it is smaller than the sum of its proper divisors (134332035704).

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

122120032420 is a wasteful number, since it uses less digits than its factorization.

122120032420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106001630 (or 6106001628 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 122120032420 its reverse (24230021221), we get a palindrome (146350053641).

The spelling of 122120032420 in words is "one hundred twenty-two billion, one hundred twenty million, thirty-two thousand, four hundred twenty".