12211103232 has 60 divisors (see below), whose sum is σ = 35242084020. Its totient is φ = 4070366208.

The previous prime is 12211103231. The next prime is 12211103243. The reversal of 12211103232 is 23230111221.

It is a super-2 number, since 2×12211103232² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211103231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1320382 + ... + 1329597.

It is an arithmetic number, because the mean of its divisors is an integer number (587368067).

Almost surely, 2^12211103232 is an apocalyptic number.

12211103232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12211103232 is an abundant number, since it is smaller than the sum of its proper divisors (23030980788).

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

12211103232 is an equidigital number, since it uses as much as digits as its factorization.

12211103232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650003 (or 2649984 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12211103232 its reverse (23230111221), we get a palindrome (35441214453).

The spelling of 12211103232 in words is "twelve billion, two hundred eleven million, one hundred three thousand, two hundred thirty-two".