122245520 has 40 divisors (see below), whose sum is σ = 288475584. Its totient is φ = 48166272.

The previous prime is 122245499. The next prime is 122245549. The reversal of 122245520 is 25542221.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6044 + ... + 16763.

Almost surely, 2^122245520 is an apocalyptic number.

122245520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122245520 is an abundant number, since it is smaller than the sum of its proper divisors (166230064).

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

122245520 is a wasteful number, since it uses less digits than its factorization.

122245520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22887 (or 22881 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 122245520 is about 11056.4695992889. The cubic root of 122245520 is about 496.3000482488.

Adding to 122245520 its reverse (25542221), we get a palindrome (147787741).

The spelling of 122245520 in words is "one hundred twenty-two million, two hundred forty-five thousand, five hundred twenty".