1100121002200 has 96 divisors (see below), whose sum is σ = 2801425072320. Its totient is φ = 398450000000.

The previous prime is 1100121002191. The next prime is 1100121002209. The reversal of 1100121002200 is 22001210011.

It is an interprime number because it is at equal distance from previous prime (1100121002191) and next prime (1100121002209).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100121002209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443926 + ... + 1548325.

It is an arithmetic number, because the mean of its divisors is an integer number (29181511170).

Almost surely, 2^{1100121002200} is an apocalyptic number.

1100121002200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100121002200 is an abundant number, since it is smaller than the sum of its proper divisors (1701304070120).

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

1100121002200 is a wasteful number, since it uses less digits than its factorization.

1100121002200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992529 (or 1992520 counting only the distinct ones).

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

Adding to 1100121002200 its reverse (22001210011), we get a palindrome (1122122212211).

The spelling of 1100121002200 in words is "one trillion, one hundred billion, one hundred twenty-one million, two thousand, two hundred".