12211120021232 has 40 divisors (see below), whose sum is σ = 26046655132080. Its totient is φ = 5499586990080.

The previous prime is 12211120021201. The next prime is 12211120021267. The reversal of 12211120021232 is 23212002111221.

It is a super-2 number, since 2×12211120021232² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 318243953 + ... + 318282320.

It is an arithmetic number, because the mean of its divisors is an integer number (651166378302).

Almost surely, 2^{12211120021232} is an apocalyptic number.

It is an amenable number.

12211120021232 is an abundant number, since it is smaller than the sum of its proper divisors (13835535110848).

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

12211120021232 is a wasteful number, since it uses less digits than its factorization.

12211120021232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636526401 (or 636526395 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12211120021232 its reverse (23212002111221), we get a palindrome (35423122132453).

The spelling of 12211120021232 in words is "twelve trillion, two hundred eleven billion, one hundred twenty million, twenty-one thousand, two hundred thirty-two".