221301343120220 has 24 divisors (see below), whose sum is σ = 506981258785008. Its totient is φ = 80473215680000.

The previous prime is 221301343120217. The next prime is 221301343120259. The reversal of 221301343120220 is 22021343103122.

It is a self number, because there is not a number n which added to its sum of digits gives 221301343120220.

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, 502957597781 + ... + 502957598220.

It is an arithmetic number, because the mean of its divisors is an integer number (21124219116042).

Almost surely, 2^{221301343120220} is an apocalyptic number.

221301343120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221301343120220 is an abundant number, since it is smaller than the sum of its proper divisors (285679915664788).

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

221301343120220 is a wasteful number, since it uses less digits than its factorization.

221301343120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005915196021 (or 1005915196019 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 221301343120220 its reverse (22021343103122), we get a palindrome (243322686223342).

The spelling of 221301343120220 in words is "two hundred twenty-one trillion, three hundred one billion, three hundred forty-three million, one hundred twenty thousand, two hundred twenty".