221100122102200 has 96 divisors (see below), whose sum is σ = 561090689861760. Its totient is φ = 80356979145600.

The previous prime is 221100122102183. The next prime is 221100122102261. The reversal of 221100122102200 is 2201221001122.

It is a happy number.

221100122102200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22807452 + ... + 31022251.

It is an arithmetic number, because the mean of its divisors is an integer number (5844694686060).

Almost surely, 2^{221100122102200} is an apocalyptic number.

221100122102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221100122102200 is an abundant number, since it is smaller than the sum of its proper divisors (339990567759560).

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

221100122102200 is a wasteful number, since it uses less digits than its factorization.

221100122102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53831597 (or 53831588 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221100122102200 its reverse (2201221001122), we get a palindrome (223301343103322).

The spelling of 221100122102200 in words is "two hundred twenty-one trillion, one hundred billion, one hundred twenty-two million, one hundred two thousand, two hundred".