221111012102200 has 96 divisors (see below), whose sum is σ = 570011667610320. Its totient is φ = 79085905920000.

The previous prime is 221111012102171. The next prime is 221111012102273. The reversal of 221111012102200 is 2201210111122.

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, 823677321 + ... + 823945720.

Almost surely, 2^{221111012102200} is an apocalyptic number.

221111012102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221111012102200 is an abundant number, since it is smaller than the sum of its proper divisors (348900655508120).

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

221111012102200 is a wasteful number, since it uses less digits than its factorization.

221111012102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647623129 (or 1647623120 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221111012102200 its reverse (2201210111122), we get a palindrome (223312222213322).

The spelling of 221111012102200 in words is "two hundred twenty-one trillion, one hundred eleven billion, twelve million, one hundred two thousand, two hundred".