221120112202200 has 144 divisors (see below), whose sum is σ = 744465562367280. Its totient is φ = 58816835700480.

The previous prime is 221120112202051. The next prime is 221120112202243. The reversal of 221120112202200 is 2202211021122.

It is a happy number.

221120112202200 is a `hidden beast` number, since 2 + 21 + 1 + 201 + 1 + 220 + 220 + 0 = 666.

221120112202200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 154001404 + ... + 155430603.

Almost surely, 2^{221120112202200} is an apocalyptic number.

221120112202200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221120112202200 is an abundant number, since it is smaller than the sum of its proper divisors (523345450165080).

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

221120112202200 is a wasteful number, since it uses less digits than its factorization.

221120112202200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309432426 (or 309432414 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 221120112202200 its reverse (2202211021122), we get a palindrome (223322323223322).

The spelling of 221120112202200 in words is "two hundred twenty-one trillion, one hundred twenty billion, one hundred twelve million, two hundred two thousand, two hundred".