122115225 has 12 divisors (see below), whose sum is σ = 201897296. Its totient is φ = 65128080.

The previous prime is 122115221. The next prime is 122115239. The reversal of 122115225 is 522511221.

It is not a de Polignac number, because 122115225 - 2² = 122115221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122115221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 814027 + ... + 814176.

Almost surely, 2^122115225 is an apocalyptic number.

122115225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122115225 is a deficient number, since it is larger than the sum of its proper divisors (79782071).

122115225 is a wasteful number, since it uses less digits than its factorization.

122115225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628216 (or 1628211 counting only the distinct ones).

The product of its digits is 400, while the sum is 21.

The square root of 122115225 is about 11050.5757768543. The cubic root of 122115225 is about 496.1236589548.

Adding to 122115225 its reverse (522511221), we get a palindrome (644626446).

The spelling of 122115225 in words is "one hundred twenty-two million, one hundred fifteen thousand, two hundred twenty-five".