1222591925 has 24 divisors (see below), whose sum is σ = 1564233216. Its totient is φ = 947211840.

The previous prime is 1222591921. The next prime is 1222591939. The reversal of 1222591925 is 5291952221.

It is a happy number.

It is not a de Polignac number, because 1222591925 - 2² = 1222591921 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222591921) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 203312 + ... + 209238.

It is an arithmetic number, because the mean of its divisors is an integer number (65176384).

Almost surely, 2^1222591925 is an apocalyptic number.

It is an amenable number.

1222591925 is a deficient number, since it is larger than the sum of its proper divisors (341641291).

1222591925 is a wasteful number, since it uses less digits than its factorization.

1222591925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6197 (or 6192 counting only the distinct ones).

The product of its digits is 32400, while the sum is 38.

The square root of 1222591925 is about 34965.5820057382. The cubic root of 1222591925 is about 1069.2859022537.

The spelling of 1222591925 in words is "one billion, two hundred twenty-two million, five hundred ninety-one thousand, nine hundred twenty-five".