222115625 has 48 divisors (see below), whose sum is σ = 304574256. Its totient is φ = 161280000.

The previous prime is 222115613. The next prime is 222115631. The reversal of 222115625 is 526511222.

It can be written as a sum of positive squares in 24 ways, for example, as 202009369 + 20106256 = 14213^2 + 4484^2 .

It is not a de Polignac number, because 222115625 - 2¹⁰ = 222114601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222115594 and 222115603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1965569 + ... + 1965681.

It is an arithmetic number, because the mean of its divisors is an integer number (6345297).

Almost surely, 2^222115625 is an apocalyptic number.

222115625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222115625 is a deficient number, since it is larger than the sum of its proper divisors (82458631).

222115625 is an equidigital number, since it uses as much as digits as its factorization.

222115625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 172 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 222115625 is about 14903.5440416030. The cubic root of 222115625 is about 605.6099987835.

Adding to 222115625 its reverse (526511222), we get a palindrome (748626847).

The spelling of 222115625 in words is "two hundred twenty-two million, one hundred fifteen thousand, six hundred twenty-five".