11232312220 has 24 divisors (see below), whose sum is σ = 23706396000. Its totient is φ = 4470345792.

The previous prime is 11232312211. The next prime is 11232312227. The reversal of 11232312220 is 2221323211.

It is a super-2 number, since 2×11232312220² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11232312227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1407115 + ... + 1415074.

It is an arithmetic number, because the mean of its divisors is an integer number (987766500).

Almost surely, 2^11232312220 is an apocalyptic number.

11232312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11232312220 is an abundant number, since it is smaller than the sum of its proper divisors (12474083780).

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

11232312220 is a wasteful number, since it uses less digits than its factorization.

11232312220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822397 (or 2822395 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11232312220 its reverse (2221323211), we get a palindrome (13453635431).

The spelling of 11232312220 in words is "eleven billion, two hundred thirty-two million, three hundred twelve thousand, two hundred twenty".