221100230022 has 32 divisors (see below), whose sum is σ = 505396081152. Its totient is φ = 63168478464.

The previous prime is 221100229997. The next prime is 221100230051. The reversal of 221100230022 is 220032001122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221100229983 and 221100230010.

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, 854518 + ... + 1082774.

It is an arithmetic number, because the mean of its divisors is an integer number (15793627536).

Almost surely, 2^221100230022 is an apocalyptic number.

221100230022 is an abundant number, since it is smaller than the sum of its proper divisors (284295851130).

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

221100230022 is a wasteful number, since it uses less digits than its factorization.

221100230022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251332.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 221100230022 its reverse (220032001122), we get a palindrome (441132231144).

The spelling of 221100230022 in words is "two hundred twenty-one billion, one hundred million, two hundred thirty thousand, twenty-two".