12220223311220 has 24 divisors (see below), whose sum is σ = 25667003997600. Its totient is φ = 4887225506592.

The previous prime is 12220223311187. The next prime is 12220223311279. The reversal of 12220223311220 is 2211332202221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 53872610 + ... + 54098969.

It is an arithmetic number, because the mean of its divisors is an integer number (1069458499900).

Almost surely, 2^{12220223311220} is an apocalyptic number.

12220223311220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220223311220 is an abundant number, since it is smaller than the sum of its proper divisors (13446780686380).

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

12220223311220 is a wasteful number, since it uses less digits than its factorization.

12220223311220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107977247 (or 107977245 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12220223311220 its reverse (2211332202221), we get a palindrome (14431555513441).

The spelling of 12220223311220 in words is "twelve trillion, two hundred twenty billion, two hundred twenty-three million, three hundred eleven thousand, two hundred twenty".