1224372225 has 48 divisors (see below), whose sum is σ = 2117614464. Its totient is φ = 623040000.

The previous prime is 1224372221. The next prime is 1224372269. The reversal of 1224372225 is 5222734221.

It is not a de Polignac number, because 1224372225 - 2² = 1224372221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1224372192 and 1224372201.

It is not an unprimeable number, because it can be changed into a prime (1224372221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1036135 + ... + 1037315.

It is an arithmetic number, because the mean of its divisors is an integer number (44116968).

Almost surely, 2^1224372225 is an apocalyptic number.

1224372225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1224372225 is a deficient number, since it is larger than the sum of its proper divisors (893242239).

1224372225 is a wasteful number, since it uses less digits than its factorization.

1224372225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818 (or 1813 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 1224372225 is about 34991.0306364360. The cubic root of 1224372225 is about 1069.8046707237.

The spelling of 1224372225 in words is "one billion, two hundred twenty-four million, three hundred seventy-two thousand, two hundred twenty-five".