122102525 has 6 divisors (see below), whose sum is σ = 151407162. Its totient is φ = 97682000.

The previous prime is 122102507. The next prime is 122102527. The reversal of 122102525 is 525201221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 43903876 + 78198649 = 6626^2 + 8843^2 .

It is not a de Polignac number, because 122102525 - 2⁸ = 122102269 is a prime.

It is a super-2 number, since 2×122102525² = 29818053222751250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122102497 and 122102506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2442026 + ... + 2442075.

It is an arithmetic number, because the mean of its divisors is an integer number (25234527).

Almost surely, 2^122102525 is an apocalyptic number.

It is an amenable number.

122102525 is a deficient number, since it is larger than the sum of its proper divisors (29304637).

122102525 is an equidigital number, since it uses as much as digits as its factorization.

122102525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884111 (or 4884106 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 122102525 is about 11050.0011312217. The cubic root of 122102525 is about 496.1064593826.

Adding to 122102525 its reverse (525201221), we get a palindrome (647303746).

It can be divided in two parts, 1221025 and 25, that multiplied together give a square (30525625 = 5525²).

The spelling of 122102525 in words is "one hundred twenty-two million, one hundred two thousand, five hundred twenty-five".