1222531025 has 12 divisors (see below), whose sum is σ = 1521582300. Its totient is φ = 974383680.

The previous prime is 1222531001. The next prime is 1222531031. The reversal of 1222531025 is 5201352221.

It can be written as a sum of positive squares in 6 ways, for example, as 100080016 + 1122451009 = 10004^2 + 33503^2 .

It is not a de Polignac number, because 1222531025 - 2⁸ = 1222530769 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84170 + ... + 97619.

It is an arithmetic number, because the mean of its divisors is an integer number (126798525).

Almost surely, 2^1222531025 is an apocalyptic number.

It is an amenable number.

1222531025 is a deficient number, since it is larger than the sum of its proper divisors (299051275).

1222531025 is a wasteful number, since it uses less digits than its factorization.

1222531025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182068 (or 182063 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1222531025 is about 34964.7111385179. The cubic root of 1222531025 is about 1069.2681474626.

Adding to 1222531025 its reverse (5201352221), we get a palindrome (6423883246).

The spelling of 1222531025 in words is "one billion, two hundred twenty-two million, five hundred thirty-one thousand, twenty-five".