122820115 has 32 divisors (see below), whose sum is σ = 170035200. Its totient is φ = 84289920.

The previous prime is 122820101. The next prime is 122820119. The reversal of 122820115 is 511028221.

It is not a de Polignac number, because 122820115 - 2¹¹ = 122818067 is a prime.

It is a super-2 number, since 2×122820115² = 30169561297226450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122820119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99321 + ... + 100549.

It is an arithmetic number, because the mean of its divisors is an integer number (5313600).

Almost surely, 2^122820115 is an apocalyptic number.

122820115 is a deficient number, since it is larger than the sum of its proper divisors (47215085).

122820115 is a wasteful number, since it uses less digits than its factorization.

122820115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 122820115 is about 11082.4236970078. The cubic root of 122820115 is about 497.0764254081.

Adding to 122820115 its reverse (511028221), we get a palindrome (633848336).

The spelling of 122820115 in words is "one hundred twenty-two million, eight hundred twenty thousand, one hundred fifteen".