221022002110220 has 24 divisors (see below), whose sum is σ = 464158459413600. Its totient is φ = 88406466561792.

The previous prime is 221022002110201. The next prime is 221022002110223. The reversal of 221022002110220 is 22011200220122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221022002110223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145116125 + ... + 146631284.

It is an arithmetic number, because the mean of its divisors is an integer number (19339935808900).

Almost surely, 2^{221022002110220} is an apocalyptic number.

221022002110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221022002110220 is an abundant number, since it is smaller than the sum of its proper divisors (243136457303380).

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

221022002110220 is a wasteful number, since it uses less digits than its factorization.

221022002110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291785297 (or 291785295 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221022002110220 its reverse (22011200220122), we get a palindrome (243033202330342).

The spelling of 221022002110220 in words is "two hundred twenty-one trillion, twenty-two billion, two million, one hundred ten thousand, two hundred twenty".