1225015522 has 16 divisors (see below), whose sum is σ = 1859675832. Its totient is φ = 605145600.

The previous prime is 1225015513. The next prime is 1225015531. The reversal of 1225015522 is 2255105221.

It is an interprime number because it is at equal distance from previous prime (1225015513) and next prime (1225015531).

It can be written as a sum of positive squares in 4 ways, for example, as 955366281 + 269649241 = 30909^2 + 16421^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113772 + ... + 124072.

Almost surely, 2^1225015522 is an apocalyptic number.

1225015522 is a deficient number, since it is larger than the sum of its proper divisors (634660310).

1225015522 is a wasteful number, since it uses less digits than its factorization.

1225015522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11013.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1225015522 is about 35000.2217421547. The cubic root of 1225015522 is about 1069.9919998237.

It can be divided in two parts, 12250 and 15522, that added together give a palindrome (27772).

The spelling of 1225015522 in words is "one billion, two hundred twenty-five million, fifteen thousand, five hundred twenty-two".