1225022044 has 12 divisors (see below), whose sum is σ = 2236996944. Its totient is φ = 585880064.

The previous prime is 1225022041. The next prime is 1225022047. The reversal of 1225022044 is 4402205221.

It is an interprime number because it is at equal distance from previous prime (1225022041) and next prime (1225022047).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225022041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6657637 + ... + 6657820.

It is an arithmetic number, because the mean of its divisors is an integer number (186416412).

Almost surely, 2^1225022044 is an apocalyptic number.

It is an amenable number.

1225022044 is a deficient number, since it is larger than the sum of its proper divisors (1011974900).

1225022044 is a wasteful number, since it uses less digits than its factorization.

1225022044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13315484 (or 13315482 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1225022044 is about 35000.3149128690. The cubic root of 1225022044 is about 1069.9938987045.

Adding to 1225022044 its reverse (4402205221), we get a palindrome (5627227265).

The spelling of 1225022044 in words is "one billion, two hundred twenty-five million, twenty-two thousand, forty-four".