123122331002221 has 8 divisors (see below), whose sum is σ = 126125646003000. Its totient is φ = 120119031778560.

The previous prime is 123122331002207. The next prime is 123122331002249. The reversal of 123122331002221 is 122200133221321.

It can be written as a sum of positive squares in 4 ways, for example, as 1169402169321 + 121952928832900 = 1081389^2 + 11043230^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123122331002221 - 2²⁷ = 123122196784493 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 (123122331002291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12700105 + ... + 20187553.

It is an arithmetic number, because the mean of its divisors is an integer number (15765705750375).

Almost surely, 2^{123122331002221} is an apocalyptic number.

It is an amenable number.

123122331002221 is a deficient number, since it is larger than the sum of its proper divisors (3003315000779).

123122331002221 is an equidigital number, since it uses as much as digits as its factorization.

123122331002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7888559.

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

Adding to 123122331002221 its reverse (122200133221321), we get a palindrome (245322464223542).

The spelling of 123122331002221 in words is "one hundred twenty-three trillion, one hundred twenty-two billion, three hundred thirty-one million, two thousand, two hundred twenty-one".