1122516225 has 60 divisors (see below), whose sum is σ = 2085495984. Its totient is φ = 596890080.

The previous prime is 1122516179. The next prime is 1122516229. The reversal of 1122516225 is 5226152211.

1122516225 is a `hidden beast` number, since 1 + 12 + 25 + 1 + 622 + 5 = 666.

It is not a de Polignac number, because 1122516225 - 2¹⁰ = 1122515201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1122516229) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 945082 + ... + 946268.

Almost surely, 2^1122516225 is an apocalyptic number.

1122516225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1122516225 is a deficient number, since it is larger than the sum of its proper divisors (962979759).

1122516225 is a wasteful number, since it uses less digits than its factorization.

1122516225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676 (or 1662 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1122516225 is about 33503.9732718375. The cubic root of 1122516225 is about 1039.2759460388.

Adding to 1122516225 its reverse (5226152211), we get a palindrome (6348668436).

The spelling of 1122516225 in words is "one billion, one hundred twenty-two million, five hundred sixteen thousand, two hundred twenty-five".