11111102012200 has 24 divisors (see below), whose sum is σ = 25833312178830. Its totient is φ = 4444440804800.

The previous prime is 11111102012191. The next prime is 11111102012233. The reversal of 11111102012200 is 221020111111.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 10141180368484 + 969921643716 = 3184522^2 + 984846^2 .

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, 27777754831 + ... + 27777755230.

Almost surely, 2^{11111102012200} is an apocalyptic number.

11111102012200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111102012200 is an abundant number, since it is smaller than the sum of its proper divisors (14722210166630).

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

11111102012200 is a wasteful number, since it uses less digits than its factorization.

11111102012200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55555510077 (or 55555510068 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11111102012200 its reverse (221020111111), we get a palindrome (11332122123311).

The spelling of 11111102012200 in words is "eleven trillion, one hundred eleven billion, one hundred two million, twelve thousand, two hundred".