1011101001200 has 60 divisors (see below), whose sum is σ = 2435789501280. Its totient is φ = 403338324480.

The previous prime is 1011101001191. The next prime is 1011101001217. The reversal of 1011101001200 is 21001011101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

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, 3297005 + ... + 3590604.

It is an arithmetic number, because the mean of its divisors is an integer number (40596491688).

Almost surely, 2^{1011101001200} is an apocalyptic number.

1011101001200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011101001200 is an abundant number, since it is smaller than the sum of its proper divisors (1424688500080).

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

1011101001200 is a wasteful number, since it uses less digits than its factorization.

1011101001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6887994 (or 6887983 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1011101001200 its reverse (21001011101), we get a palindrome (1032102012301).

Subtracting from 1011101001200 its reverse (21001011101), we obtain a palindrome (990099990099).

The spelling of 1011101001200 in words is "one trillion, eleven billion, one hundred one million, one thousand, two hundred".