221111102020200 has 384 divisors, whose sum is σ = 825137664000000. Its totient is φ = 48909366777600.

The previous prime is 221111102020129. The next prime is 221111102020247. The reversal of 221111102020200 is 2020201111122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 221111102020200.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10949200 + ... + 23708799.

It is an arithmetic number, because the mean of its divisors is an integer number (2148796000000).

Almost surely, 2^{221111102020200} is an apocalyptic number.

221111102020200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221111102020200 is an abundant number, since it is smaller than the sum of its proper divisors (604026561979800).

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

221111102020200 is a wasteful number, since it uses less digits than its factorization.

221111102020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34658070 (or 34658047 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221111102020200 its reverse (2020201111122), we get a palindrome (223131303131322).

The spelling of 221111102020200 in words is "two hundred twenty-one trillion, one hundred eleven billion, one hundred two million, twenty thousand, two hundred".