11100200009121 has 48 divisors (see below), whose sum is σ = 17062583316480. Its totient is φ = 6929703221760.

The previous prime is 11100200009111. The next prime is 11100200009243. The reversal of 11100200009121 is 12190000200111.

It is a happy number.

It is not a de Polignac number, because 11100200009121 - 2⁷ = 11100200008993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11100200009094 and 11100200009103.

It is not an unprimeable number, because it can be changed into a prime (11100200009111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28426720 + ... + 28814558.

It is an arithmetic number, because the mean of its divisors is an integer number (355470485760).

Almost surely, 2^{11100200009121} is an apocalyptic number.

It is an amenable number.

11100200009121 is a deficient number, since it is larger than the sum of its proper divisors (5962383307359).

11100200009121 is a wasteful number, since it uses less digits than its factorization.

11100200009121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388806 (or 388803 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 11100200009121 its reverse (12190000200111), we get a palindrome (23290200209232).

The spelling of 11100200009121 in words is "eleven trillion, one hundred billion, two hundred million, nine thousand, one hundred twenty-one".