1100121212200 has 48 divisors (see below), whose sum is σ = 2558398752000. Its totient is φ = 439942345920.

The previous prime is 1100121212161. The next prime is 1100121212243. The reversal of 1100121212200 is 22121210011.

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, 170511 + ... + 1493089.

It is an arithmetic number, because the mean of its divisors is an integer number (53299974000).

Almost surely, 2^{1100121212200} is an apocalyptic number.

1100121212200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100121212200 is an abundant number, since it is smaller than the sum of its proper divisors (1458277539800).

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

1100121212200 is a wasteful number, since it uses less digits than its factorization.

1100121212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326754 (or 1326745 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1100121212200 its reverse (22121210011), we get a palindrome (1122242422211).

The spelling of 1100121212200 in words is "one trillion, one hundred billion, one hundred twenty-one million, two hundred twelve thousand, two hundred".