121112102210101 has 4 divisors (see below), whose sum is σ = 121112132380000. Its totient is φ = 121112072040204.

The previous prime is 121112102210089. The next prime is 121112102210161. The reversal of 121112102210101 is 101012201211121.

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 a de Polignac number, because none of the positive numbers 2^k-121112102210101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112102210161) 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, 7933251 + ... + 17468848.

It is an arithmetic number, because the mean of its divisors is an integer number (30278033095000).

Almost surely, 2^{121112102210101} is an apocalyptic number.

It is an amenable number.

121112102210101 is a deficient number, since it is larger than the sum of its proper divisors (30169899).

121112102210101 is an equidigital number, since it uses as much as digits as its factorization.

121112102210101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30169898.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 121112102210101 its reverse (101012201211121), we get a palindrome (222124303421222).

The spelling of 121112102210101 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred two million, two hundred ten thousand, one hundred one".