122606660020 has 24 divisors (see below), whose sum is σ = 277279677864. Its totient is φ = 45270151296.

The previous prime is 122606660017. The next prime is 122606660021. The reversal of 122606660020 is 20066606221.

It can be written as a sum of positive squares in 4 ways, for example, as 5678225316 + 116928434704 = 75354^2 + 341948^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122606660021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235781779 + ... + 235782298.

It is an arithmetic number, because the mean of its divisors is an integer number (11553319911).

Almost surely, 2^122606660020 is an apocalyptic number.

122606660020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122606660020 is an abundant number, since it is smaller than the sum of its proper divisors (154673017844).

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

122606660020 is a wasteful number, since it uses less digits than its factorization.

122606660020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471564099 (or 471564097 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 122606660020 in words is "one hundred twenty-two billion, six hundred six million, six hundred sixty thousand, twenty".