121000010210111 has 4 divisors (see below), whose sum is σ = 121039799759424. Its totient is φ = 120960220660800.

The previous prime is 121000010210083. The next prime is 121000010210129. The reversal of 121000010210111 is 111012010000121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121000010210111 - 2³⁴ = 120982830340927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121000010210092 and 121000010210101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000015210111) 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, 19894770095 + ... + 19894776176.

It is an arithmetic number, because the mean of its divisors is an integer number (30259949939856).

Almost surely, 2^{121000010210111} is an apocalyptic number.

121000010210111 is a deficient number, since it is larger than the sum of its proper divisors (39789549313).

121000010210111 is an equidigital number, since it uses as much as digits as its factorization.

121000010210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39789549312.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121000010210111 its reverse (111012010000121), we get a palindrome (232012020210232).

The spelling of 121000010210111 in words is "one hundred twenty-one trillion, ten million, two hundred ten thousand, one hundred eleven".