121331000110211 has 4 divisors (see below), whose sum is σ = 126606260984592. Its totient is φ = 116055739235832.

The previous prime is 121331000110193. The next prime is 121331000110217. The reversal of 121331000110211 is 112011000133121.

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 121331000110211 - 2⁶ = 121331000110147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121331000110211.

It is not an unprimeable number, because it can be changed into a prime (121331000110217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2637630437156 + ... + 2637630437201.

It is an arithmetic number, because the mean of its divisors is an integer number (31651565246148).

Almost surely, 2^{121331000110211} is an apocalyptic number.

121331000110211 is a deficient number, since it is larger than the sum of its proper divisors (5275260874381).

121331000110211 is an equidigital number, since it uses as much as digits as its factorization.

121331000110211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275260874380.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 121331000110211 its reverse (112011000133121), we get a palindrome (233342000243332).

The spelling of 121331000110211 in words is "one hundred twenty-one trillion, three hundred thirty-one billion, one hundred ten thousand, two hundred eleven".