1222113425 has 24 divisors (see below), whose sum is σ = 1727998776. Its totient is φ = 849392640.

The previous prime is 1222113413. The next prime is 1222113427. The reversal of 1222113425 is 5243112221.

It can be written as a sum of positive squares in 12 ways, for example, as 814759936 + 407353489 = 28544^2 + 20183^2 .

It is not a de Polignac number, because 1222113425 - 2¹⁶ = 1222047889 is a prime.

It is a super-2 number, since 2×1222113425² = 2987122447130461250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222113425.

It is not an unprimeable number, because it can be changed into a prime (1222113427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105074 + ... + 116123.

It is an arithmetic number, because the mean of its divisors is an integer number (71999949).

Almost surely, 2^1222113425 is an apocalyptic number.

It is an amenable number.

1222113425 is a deficient number, since it is larger than the sum of its proper divisors (505885351).

1222113425 is a wasteful number, since it uses less digits than its factorization.

1222113425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221237 (or 221232 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 1222113425 is about 34958.7388931580. The cubic root of 1222113425 is about 1069.1463844367.

Adding to 1222113425 its reverse (5243112221), we get a palindrome (6465225646).

The spelling of 1222113425 in words is "one billion, two hundred twenty-two million, one hundred thirteen thousand, four hundred twenty-five".