121331120222105 has 16 divisors (see below), whose sum is σ = 151500729176064. Its totient is φ = 93207238712640.

The previous prime is 121331120222089. The next prime is 121331120222119. The reversal of 121331120222105 is 501222021133121.

It is a happy number.

It is not a de Polignac number, because 121331120222105 - 2⁴ = 121331120222089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4870767161 + ... + 4870792070.

It is an arithmetic number, because the mean of its divisors is an integer number (9468795573504).

Almost surely, 2^{121331120222105} is an apocalyptic number.

It is an amenable number.

121331120222105 is a deficient number, since it is larger than the sum of its proper divisors (30169608953959).

121331120222105 is an equidigital number, since it uses as much as digits as its factorization.

121331120222105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9741559336.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 121331120222105 its reverse (501222021133121), we get a palindrome (622553141355226).

The spelling of 121331120222105 in words is "one hundred twenty-one trillion, three hundred thirty-one billion, one hundred twenty million, two hundred twenty-two thousand, one hundred five".