1225234722 has 24 divisors (see below), whose sum is σ = 2586234096. Its totient is φ = 386915544.

The previous prime is 1225234709. The next prime is 1225234723. The reversal of 1225234722 is 2274325221.

It is a self number, because there is not a number n which added to its sum of digits gives 1225234722.

It is not an unprimeable number, because it can be changed into a prime (1225234723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280668 + ... + 284999.

It is an arithmetic number, because the mean of its divisors is an integer number (107759754).

Almost surely, 2^1225234722 is an apocalyptic number.

1225234722 is an abundant number, since it is smaller than the sum of its proper divisors (1360999374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225234722 is a wasteful number, since it uses less digits than its factorization.

1225234722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565710 (or 565691 counting only the distinct ones).

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

The square root of 1225234722 is about 35003.3530108188. The cubic root of 1225234722 is about 1070.0558162283.

Adding to 1225234722 its reverse (2274325221), we get a palindrome (3499559943).

The spelling of 1225234722 in words is "one billion, two hundred twenty-five million, two hundred thirty-four thousand, seven hundred twenty-two".