1232210220 has 24 divisors (see below), whose sum is σ = 3450188784. Its totient is φ = 328589376.

The previous prime is 1232210179. The next prime is 1232210293. The reversal of 1232210220 is 220122321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1232210220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10268359 + ... + 10268478.

It is an arithmetic number, because the mean of its divisors is an integer number (143757866).

Almost surely, 2^1232210220 is an apocalyptic number.

1232210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232210220 is an abundant number, since it is smaller than the sum of its proper divisors (2217978564).

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

1232210220 is a wasteful number, since it uses less digits than its factorization.

1232210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20536849 (or 20536847 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1232210220 is about 35102.8520208829. The cubic root of 1232210220 is about 1072.0826528590.

Adding to 1232210220 its reverse (220122321), we get a palindrome (1452332541).

The spelling of 1232210220 in words is "one billion, two hundred thirty-two million, two hundred ten thousand, two hundred twenty".