221112110221200 has 240 divisors, whose sum is σ = 858540355704000. Its totient is φ = 53602935782400.

The previous prime is 221112110221199. The next prime is 221112110221243. The reversal of 221112110221200 is 2122011211122.

221112110221200 is a `hidden beast` number, since 2 + 21 + 11 + 211 + 0 + 221 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 930487725 + ... + 930725324.

It is an arithmetic number, because the mean of its divisors is an integer number (3577251482100).

Almost surely, 2^{221112110221200} is an apocalyptic number.

221112110221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221112110221200 is an abundant number, since it is smaller than the sum of its proper divisors (637428245482800).

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

221112110221200 is a wasteful number, since it uses less digits than its factorization.

221112110221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861213087 (or 1861213070 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 221112110221200 its reverse (2122011211122), we get a palindrome (223234121432322).

The spelling of 221112110221200 in words is "two hundred twenty-one trillion, one hundred twelve billion, one hundred ten million, two hundred twenty-one thousand, two hundred".