1220231344 has 20 divisors (see below), whose sum is σ = 2372995440. Its totient is φ = 607845440.

The previous prime is 1220231329. The next prime is 1220231359. The reversal of 1220231344 is 4431320221.

It is an interprime number because it is at equal distance from previous prime (1220231329) and next prime (1220231359).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137452 + ... + 146059.

It is an arithmetic number, because the mean of its divisors is an integer number (118649772).

Almost surely, 2^1220231344 is an apocalyptic number.

It is an amenable number.

1220231344 is a deficient number, since it is larger than the sum of its proper divisors (1152764096).

1220231344 is a wasteful number, since it uses less digits than its factorization.

1220231344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283788 (or 283782 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1220231344 is about 34931.8099158918. The cubic root of 1220231344 is about 1068.5972663015.

Adding to 1220231344 its reverse (4431320221), we get a palindrome (5651551565).

The spelling of 1220231344 in words is "one billion, two hundred twenty million, two hundred thirty-one thousand, three hundred forty-four".