122452220 has 24 divisors (see below), whose sum is σ = 280527408. Its totient is φ = 44528000.

The previous prime is 122452219. The next prime is 122452229. The reversal of 122452220 is 22254221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122452192 and 122452201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122452229) 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, 278081 + ... + 278520.

It is an arithmetic number, because the mean of its divisors is an integer number (11688642).

Almost surely, 2^122452220 is an apocalyptic number.

122452220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122452220 is an abundant number, since it is smaller than the sum of its proper divisors (158075188).

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

122452220 is a wasteful number, since it uses less digits than its factorization.

122452220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556621 (or 556619 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 122452220 is about 11065.8131196944. The cubic root of 122452220 is about 496.5796152905.

The spelling of 122452220 in words is "one hundred twenty-two million, four hundred fifty-two thousand, two hundred twenty".