111220102101200 has 30 divisors (see below), whose sum is σ = 267206295299094. Its totient is φ = 44488040840320.

The previous prime is 111220102101181. The next prime is 111220102101247. The reversal of 111220102101200 is 2101201022111.

It can be written as a sum of positive squares in 3 ways, for example, as 5154243927616 + 106065858173584 = 2270296^2 + 10298828^2 .

It is a super-2 number, since 2×111220102101200² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139025127227 + ... + 139025128026.

Almost surely, 2^{111220102101200} is an apocalyptic number.

111220102101200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111220102101200 is an abundant number, since it is smaller than the sum of its proper divisors (155986193197894).

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

111220102101200 is a wasteful number, since it uses less digits than its factorization.

111220102101200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278050255271 (or 278050255260 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111220102101200 its reverse (2101201022111), we get a palindrome (113321303123311).

The spelling of 111220102101200 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred two million, one hundred one thousand, two hundred".