122577220 has 48 divisors (see below), whose sum is σ = 265547520. Its totient is φ = 47506176.

The previous prime is 122577211. The next prime is 122577223. The reversal of 122577220 is 22775221.

It is not an unprimeable number, because it can be changed into a prime (122577223) 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, 85429 + ... + 86851.

It is an arithmetic number, because the mean of its divisors is an integer number (5532240).

Almost surely, 2^122577220 is an apocalyptic number.

122577220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122577220 is an abundant number, since it is smaller than the sum of its proper divisors (142970300).

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

122577220 is a wasteful number, since it uses less digits than its factorization.

122577220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 122577220 is about 11071.4597050253. The cubic root of 122577220 is about 496.7485283641.

The spelling of 122577220 in words is "one hundred twenty-two million, five hundred seventy-seven thousand, two hundred twenty".