122566620 has 48 divisors (see below), whose sum is σ = 374387328. Its totient is φ = 29712960.

The previous prime is 122566597. The next prime is 122566637. The reversal of 122566620 is 26665221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92194 + ... + 93513.

It is an arithmetic number, because the mean of its divisors is an integer number (7799736).

Almost surely, 2^122566620 is an apocalyptic number.

122566620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122566620 is an abundant number, since it is smaller than the sum of its proper divisors (251820708).

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

122566620 is a wasteful number, since it uses less digits than its factorization.

122566620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185730 (or 185728 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 122566620 is about 11070.9809863444. The cubic root of 122566620 is about 496.7342089928.

The spelling of 122566620 in words is "one hundred twenty-two million, five hundred sixty-six thousand, six hundred twenty".