122520196 has 12 divisors (see below), whose sum is σ = 215976348. Its totient is φ = 60812672.

The previous prime is 122520193. The next prime is 122520247. The reversal of 122520196 is 691025221.

It can be written as a sum of positive squares in 2 ways, for example, as 89870400 + 32649796 = 9480^2 + 5714^2 .

It is a super-2 number, since 2×122520196² = 30022396855756832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122520193) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 111241 + ... + 112336.

It is an arithmetic number, because the mean of its divisors is an integer number (17998029).

Almost surely, 2^122520196 is an apocalyptic number.

It is an amenable number.

122520196 is a deficient number, since it is larger than the sum of its proper divisors (93456152).

122520196 is a wasteful number, since it uses less digits than its factorization.

122520196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223718 (or 223716 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 122520196 is about 11068.8841352686. The cubic root of 122520196 is about 496.6714858222.

The spelling of 122520196 in words is "one hundred twenty-two million, five hundred twenty thousand, one hundred ninety-six".