12011322032220 has 96 divisors (see below), whose sum is σ = 38437592256000. Its totient is φ = 2745347768064.

The previous prime is 12011322032113. The next prime is 12011322032243. The reversal of 12011322032220 is 2223022311021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11712706 + ... + 12696854.

It is an arithmetic number, because the mean of its divisors is an integer number (400391586000).

Almost surely, 2^{12011322032220} is an apocalyptic number.

12011322032220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011322032220 is an abundant number, since it is smaller than the sum of its proper divisors (26426270223780).

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

12011322032220 is a wasteful number, since it uses less digits than its factorization.

12011322032220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013227 (or 1013225 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12011322032220 its reverse (2223022311021), we get a palindrome (14234344343241).

The spelling of 12011322032220 in words is "twelve trillion, eleven billion, three hundred twenty-two million, thirty-two thousand, two hundred twenty".