111021220112200 has 48 divisors (see below), whose sum is σ = 273308121284580. Its totient is φ = 41796224040960.

The previous prime is 111021220112197. The next prime is 111021220112213. The reversal of 111021220112200 is 2211022120111.

It can be written as a sum of positive squares in 6 ways, for example, as 38769078096324 + 72252142015876 = 6226482^2 + 8500126^2 .

It is a super-2 number, since 2×111021220112200² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16326646617 + ... + 16326653416.

Almost surely, 2^{111021220112200} is an apocalyptic number.

111021220112200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111021220112200 is an abundant number, since it is smaller than the sum of its proper divisors (162286901172380).

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

111021220112200 is a wasteful number, since it uses less digits than its factorization.

111021220112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32653300066 (or 32653300057 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111021220112200 its reverse (2211022120111), we get a palindrome (113232242232311).

The spelling of 111021220112200 in words is "one hundred eleven trillion, twenty-one billion, two hundred twenty million, one hundred twelve thousand, two hundred".