12221132100220 has 48 divisors (see below), whose sum is σ = 25680346997760. Its totient is φ = 4885412009024.

The previous prime is 12221132100187. The next prime is 12221132100277. The reversal of 12221132100220 is 2200123112221.

It is a super-2 number, since 2×12221132100220² (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 15 ways as a sum of consecutive naturals, for example, 219986487 + ... + 220042033.

It is an arithmetic number, because the mean of its divisors is an integer number (535007229120).

Almost surely, 2^{12221132100220} is an apocalyptic number.

12221132100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221132100220 is an abundant number, since it is smaller than the sum of its proper divisors (13459214897540).

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

12221132100220 is a wasteful number, since it uses less digits than its factorization.

12221132100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62202 (or 62200 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12221132100220 its reverse (2200123112221), we get a palindrome (14421255212441).

The spelling of 12221132100220 in words is "twelve trillion, two hundred twenty-one billion, one hundred thirty-two million, one hundred thousand, two hundred twenty".