122303312012221 has 4 divisors (see below), whose sum is σ = 122334142193152. Its totient is φ = 122272481831292.

The previous prime is 122303312012197. The next prime is 122303312012227. The reversal of 122303312012221 is 122210213303221.

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 122303312012221 - 2¹⁹ = 122303311487933 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 (122303312012227) 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, 15415084515 + ... + 15415092448.

It is an arithmetic number, because the mean of its divisors is an integer number (30583535548288).

Almost surely, 2^{122303312012221} is an apocalyptic number.

It is an amenable number.

122303312012221 is a deficient number, since it is larger than the sum of its proper divisors (30830180931).

122303312012221 is an equidigital number, since it uses as much as digits as its factorization.

122303312012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30830180930.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 122303312012221 its reverse (122210213303221), we get a palindrome (244513525315442).

The spelling of 122303312012221 in words is "one hundred twenty-two trillion, three hundred three billion, three hundred twelve million, twelve thousand, two hundred twenty-one".