221133221210220 has 96 divisors (see below), whose sum is σ = 675562924995840. Its totient is φ = 53600002095360.

The previous prime is 221133221210219. The next prime is 221133221210221. The reversal of 221133221210220 is 22012122331122.

It is an interprime number because it is at equal distance from previous prime (221133221210219) and next prime (221133221210221).

It is not an unprimeable number, because it can be changed into a prime (221133221210221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20762767 + ... + 29552646.

It is an arithmetic number, because the mean of its divisors is an integer number (7037113802040).

Almost surely, 2^{221133221210220} is an apocalyptic number.

221133221210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221133221210220 is an abundant number, since it is smaller than the sum of its proper divisors (454429703785620).

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

221133221210220 is a wasteful number, since it uses less digits than its factorization.

221133221210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50322095 (or 50322093 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 221133221210220 its reverse (22012122331122), we get a palindrome (243145343541342).

The spelling of 221133221210220 in words is "two hundred twenty-one trillion, one hundred thirty-three billion, two hundred twenty-one million, two hundred ten thousand, two hundred twenty".