122112425 has 6 divisors (see below), whose sum is σ = 151419438. Its totient is φ = 97689920.

The previous prime is 122112421. The next prime is 122112443. The reversal of 122112425 is 524211221.

It can be written as a sum of positive squares in 3 ways, for example, as 22052416 + 100060009 = 4696^2 + 10003^2 .

It is not a de Polignac number, because 122112425 - 2² = 122112421 is a prime.

It is a super-2 number, since 2×122112425² = 29822888678761250, 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 = 122112397 and 122112406.

It is not an unprimeable number, because it can be changed into a prime (122112421) 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, 2442224 + ... + 2442273.

It is an arithmetic number, because the mean of its divisors is an integer number (25236573).

Almost surely, 2^122112425 is an apocalyptic number.

It is an amenable number.

122112425 is a deficient number, since it is larger than the sum of its proper divisors (29307013).

122112425 is an equidigital number, since it uses as much as digits as its factorization.

122112425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884507 (or 4884502 counting only the distinct ones).

The product of its digits is 320, while the sum is 20.

The square root of 122112425 is about 11050.4490858969. The cubic root of 122112425 is about 496.1198670256.

Adding to 122112425 its reverse (524211221), we get a palindrome (646323646).

The spelling of 122112425 in words is "one hundred twenty-two million, one hundred twelve thousand, four hundred twenty-five".