122231120221 has 4 divisors (see below), whose sum is σ = 139692708832. Its totient is φ = 104769531612.

The previous prime is 122231120201. The next prime is 122231120243. The reversal of 122231120221 is 122021132221.

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 122231120221 - 2⁵ = 122231120189 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 (122231120201) 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, 8730794295 + ... + 8730794308.

It is an arithmetic number, because the mean of its divisors is an integer number (34923177208).

Almost surely, 2^122231120221 is an apocalyptic number.

It is an amenable number.

122231120221 is a deficient number, since it is larger than the sum of its proper divisors (17461588611).

122231120221 is an equidigital number, since it uses as much as digits as its factorization.

122231120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17461588610.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 122231120221 its reverse (122021132221), we get a palindrome (244252252442).

The spelling of 122231120221 in words is "one hundred twenty-two billion, two hundred thirty-one million, one hundred twenty thousand, two hundred twenty-one".