1220232512 has 28 divisors (see below), whose sum is σ = 2439899616. Its totient is φ = 605454720.

The previous prime is 1220232487. The next prime is 1220232521. The reversal of 1220232512 is 2152320221.

It is a congruent number.

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, 64388 + ... + 81155.

It is an arithmetic number, because the mean of its divisors is an integer number (87139272).

Almost surely, 2^1220232512 is an apocalyptic number.

It is an amenable number.

1220232512 is a deficient number, since it is larger than the sum of its proper divisors (1219667104).

1220232512 is a wasteful number, since it uses less digits than its factorization.

1220232512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145686 (or 145676 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1220232512 is about 34931.8266341742. The cubic root of 1220232512 is about 1068.5976072535.

Adding to 1220232512 its reverse (2152320221), we get a palindrome (3372552733).

The spelling of 1220232512 in words is "one billion, two hundred twenty million, two hundred thirty-two thousand, five hundred twelve".