111222022220100 has 288 divisors, whose sum is σ = 413008409520000. Its totient is φ = 25376860569600.

The previous prime is 111222022220077. The next prime is 111222022220161. The reversal of 111222022220100 is 1022220222111.

It is a happy number.

111222022220100 is a `hidden beast` number, since 11 + 12 + 220 + 222 + 201 + 0 + 0 = 666.

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

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 95 ways as a sum of consecutive naturals, for example, 109637725 + ... + 110647524.

It is an arithmetic number, because the mean of its divisors is an integer number (1434056977500).

Almost surely, 2^{111222022220100} is an apocalyptic number.

111222022220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111222022220100 is an abundant number, since it is smaller than the sum of its proper divisors (301786387299900).

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

111222022220100 is a wasteful number, since it uses less digits than its factorization.

111222022220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220285300 (or 220285287 counting only the distinct ones).

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

Adding to 111222022220100 its reverse (1022220222111), we get a palindrome (112244242442211).

The spelling of 111222022220100 in words is "one hundred eleven trillion, two hundred twenty-two billion, twenty-two million, two hundred twenty thousand, one hundred".