121100211111101 has 4 divisors (see below), whose sum is σ = 121196398730400. Its totient is φ = 121004023491804.

The previous prime is 121100211111091. The next prime is 121100211111107. The reversal of 121100211111101 is 101111112001121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121100211111101 - 2²⁶ = 121100144002237 is a prime.

It is a super-2 number, since 2×121100211111101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100211111107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48093807761 + ... + 48093810278.

It is an arithmetic number, because the mean of its divisors is an integer number (30299099682600).

Almost surely, 2^{121100211111101} is an apocalyptic number.

It is an amenable number.

121100211111101 is a deficient number, since it is larger than the sum of its proper divisors (96187619299).

121100211111101 is an equidigital number, since it uses as much as digits as its factorization.

121100211111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96187619298.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 121100211111101 its reverse (101111112001121), we get a palindrome (222211323112222).

The spelling of 121100211111101 in words is "one hundred twenty-one trillion, one hundred billion, two hundred eleven million, one hundred eleven thousand, one hundred one".