11100020112121 has 16 divisors (see below), whose sum is σ = 11161904785920. Its totient is φ = 11038312558080.

The previous prime is 11100020112091. The next prime is 11100020112161. The reversal of 11100020112121 is 12121102000111.

It is a happy number.

11100020112121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11100020112121 - 2⁵ = 11100020112089 is a prime.

It is a super-2 number, since 2×11100020112121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11100020112161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323249865 + ... + 323284201.

It is an arithmetic number, because the mean of its divisors is an integer number (697619049120).

Almost surely, 2^{11100020112121} is an apocalyptic number.

It is an amenable number.

11100020112121 is a deficient number, since it is larger than the sum of its proper divisors (61884673799).

11100020112121 is a wasteful number, since it uses less digits than its factorization.

11100020112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36864.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11100020112121 its reverse (12121102000111), we get a palindrome (23221122112232).

The spelling of 11100020112121 in words is "eleven trillion, one hundred billion, twenty million, one hundred twelve thousand, one hundred twenty-one".