1232211120 has 80 divisors (see below), whose sum is σ = 4365553920. Its totient is φ = 281647872.

The previous prime is 1232211109. The next prime is 1232211191. The reversal of 1232211120 is 211122321.

It is a tau number, because it is divible by the number of its divisors (80).

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 1232211120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365050 + ... + 368409.

It is an arithmetic number, because the mean of its divisors is an integer number (54569424).

Almost surely, 2^1232211120 is an apocalyptic number.

1232211120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232211120 is an abundant number, since it is smaller than the sum of its proper divisors (3133342800).

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

1232211120 is a wasteful number, since it uses less digits than its factorization.

1232211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733482 (or 733476 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1232211120 is about 35102.8648403517. The cubic root of 1232211120 is about 1072.0829138735.

Adding to 1232211120 its reverse (211122321), we get a palindrome (1443333441).

The spelling of 1232211120 in words is "one billion, two hundred thirty-two million, two hundred eleven thousand, one hundred twenty".