221112222300 has 54 divisors (see below), whose sum is σ = 693063979608. Its totient is φ = 58963259040.

The previous prime is 221112222293. The next prime is 221112222313. The reversal of 221112222300 is 3222211122.

221112222300 is a `hidden beast` number, since 2 + 211 + 1 + 222 + 230 + 0 = 666.

221112222300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221112222300² (a number of 23 digits) contains 22 as substring.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 122839224 + ... + 122841023.

Almost surely, 2^221112222300 is an apocalyptic number.

221112222300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221112222300 is an abundant number, since it is smaller than the sum of its proper divisors (471951757308).

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

221112222300 is a wasteful number, since it uses less digits than its factorization.

221112222300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245680267 (or 245680257 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 221112222300 its reverse (3222211122), we get a palindrome (224334433422).

The spelling of 221112222300 in words is "two hundred twenty-one billion, one hundred twelve million, two hundred twenty-two thousand, three hundred".