122012111210221 has 4 divisors (see below), whose sum is σ = 124080113095200. Its totient is φ = 119944109325244.

The previous prime is 122012111210203. The next prime is 122012111210261.

It is a happy number.

122012111210221 is nontrivially palindromic in base 10.

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 122012111210221 - 2¹¹ = 122012111208173 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 (122012111210261) 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, 1034000942401 + ... + 1034000942518.

It is an arithmetic number, because the mean of its divisors is an integer number (31020028273800).

Almost surely, 2^{122012111210221} is an apocalyptic number.

It is an amenable number.

122012111210221 is a deficient number, since it is larger than the sum of its proper divisors (2068001884979).

122012111210221 is an equidigital number, since it uses as much as digits as its factorization.

122012111210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068001884978.

The product of its (nonzero) digits is 64, while the sum is 19.

The spelling of 122012111210221 in words is "one hundred twenty-two trillion, twelve billion, one hundred eleven million, two hundred ten thousand, two hundred twenty-one".