122520650 has 48 divisors (see below), whose sum is σ = 269447040. Its totient is φ = 40555200.

The previous prime is 122520647. The next prime is 122520661. The reversal of 122520650 is 56025221.

It is a super-2 number, since 2×122520650² = 30022619352845000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4115 + ... + 16185.

It is an arithmetic number, because the mean of its divisors is an integer number (5613480).

Almost surely, 2^122520650 is an apocalyptic number.

122520650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122520650 is an abundant number, since it is smaller than the sum of its proper divisors (146926390).

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

122520650 is a wasteful number, since it uses less digits than its factorization.

122520650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12119 (or 12114 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 122520650 is about 11068.9046431885. The cubic root of 122520650 is about 496.6720992955.

Adding to 122520650 its reverse (56025221), we get a palindrome (178545871).

The spelling of 122520650 in words is "one hundred twenty-two million, five hundred twenty thousand, six hundred fifty".