111200222101220 has 72 divisors (see below), whose sum is σ = 271648579427064. Its totient is φ = 38125464459264.

The previous prime is 111200222101211. The next prime is 111200222101231. The reversal of 111200222101220 is 22101222002111.

It can be written as a sum of positive squares in 4 ways, for example, as 44023593124 + 111156198508096 = 209818^2 + 10543064^2 .

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, 132895274 + ... + 133729406.

It is an arithmetic number, because the mean of its divisors is an integer number (3772896936487).

Almost surely, 2^{111200222101220} is an apocalyptic number.

111200222101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111200222101220 is an abundant number, since it is smaller than the sum of its proper divisors (160448357325844).

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

111200222101220 is a wasteful number, since it uses less digits than its factorization.

111200222101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970189 (or 970180 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111200222101220 its reverse (22101222002111), we get a palindrome (133301444103331).

The spelling of 111200222101220 in words is "one hundred eleven trillion, two hundred billion, two hundred twenty-two million, one hundred one thousand, two hundred twenty".