11000100020121 has 12 divisors (see below), whose sum is σ = 15889093380160. Its totient is φ = 7333372312920.

The previous prime is 11000100020089. The next prime is 11000100020197. The reversal of 11000100020121 is 12102000100011.

It is a happy number.

It is not a de Polignac number, because 11000100020121 - 2⁵ = 11000100020089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11000100025121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 370236 + ... + 4705026.

Almost surely, 2^{11000100020121} is an apocalyptic number.

It is an amenable number.

11000100020121 is a deficient number, since it is larger than the sum of its proper divisors (4888993360039).

11000100020121 is a wasteful number, since it uses less digits than its factorization.

11000100020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616756 (or 4616753 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11000100020121 its reverse (12102000100011), we get a palindrome (23102100120132).

The spelling of 11000100020121 in words is "eleven trillion, one hundred million, twenty thousand, one hundred twenty-one".