1200011102200 has 24 divisors (see below), whose sum is σ = 2790025813080. Its totient is φ = 480004440800.

The previous prime is 1200011102131. The next prime is 1200011102233. The reversal of 1200011102200 is 22011100021.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 3000027556 + ... + 3000027955.

It is an arithmetic number, because the mean of its divisors is an integer number (116251075545).

Almost surely, 2^{1200011102200} is an apocalyptic number.

1200011102200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200011102200 is an abundant number, since it is smaller than the sum of its proper divisors (1590014710880).

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

1200011102200 is a wasteful number, since it uses less digits than its factorization.

1200011102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000055527 (or 6000055518 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1200011102200 its reverse (22011100021), we get a palindrome (1222022202221).

The spelling of 1200011102200 in words is "one trillion, two hundred billion, eleven million, one hundred two thousand, two hundred".