11100120021121 has 8 divisors (see below), whose sum is σ = 11483371310400. Its totient is φ = 10716901300560.

The previous prime is 11100120021119. The next prime is 11100120021157. The reversal of 11100120021121 is 12112002100111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11100120021121 - 2¹ = 11100120021119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11100120021181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7447765 + ... + 8813026.

It is an arithmetic number, because the mean of its divisors is an integer number (1435421413800).

Almost surely, 2^{11100120021121} is an apocalyptic number.

It is an amenable number.

11100120021121 is a deficient number, since it is larger than the sum of its proper divisors (383251289279).

11100120021121 is a wasteful number, since it uses less digits than its factorization.

11100120021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16284359.

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

Adding to 11100120021121 its reverse (12112002100111), we get a palindrome (23212122121232).

The spelling of 11100120021121 in words is "eleven trillion, one hundred billion, one hundred twenty million, twenty-one thousand, one hundred twenty-one".