1122402225 has 48 divisors (see below), whose sum is σ = 2193966720. Its totient is φ = 495398400.

The previous prime is 1122402199. The next prime is 1122402247. The reversal of 1122402225 is 5222042211.

It is not a de Polignac number, because 1122402225 - 2⁶ = 1122402161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21636 + ... + 52085.

It is an arithmetic number, because the mean of its divisors is an integer number (45707640).

Almost surely, 2^1122402225 is an apocalyptic number.

1122402225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1122402225 is a deficient number, since it is larger than the sum of its proper divisors (1071564495).

1122402225 is a wasteful number, since it uses less digits than its factorization.

1122402225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73770 (or 73765 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1122402225 is about 33502.2719378850. The cubic root of 1122402225 is about 1039.2407627407.

Adding to 1122402225 its reverse (5222042211), we get a palindrome (6344444436).

The spelling of 1122402225 in words is "one billion, one hundred twenty-two million, four hundred two thousand, two hundred twenty-five".