123302301021221 has 12 divisors (see below), whose sum is σ = 145574084304288. Its totient is φ = 104110258428792.

The previous prime is 123302301021187. The next prime is 123302301021253. The reversal of 123302301021221 is 122120103203321.

It is not a de Polignac number, because 123302301021221 - 2⁴² = 118904254510117 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 (123302301021721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18778903361 + ... + 18778909926.

It is an arithmetic number, because the mean of its divisors is an integer number (12131173692024).

Almost surely, 2^{123302301021221} is an apocalyptic number.

It is an amenable number.

123302301021221 is a deficient number, since it is larger than the sum of its proper divisors (22271783283067).

123302301021221 is an equidigital number, since it uses as much as digits as its factorization.

123302301021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37557813368 (or 37557813361 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 123302301021221 its reverse (122120103203321), we get a palindrome (245422404224542).

The spelling of 123302301021221 in words is "one hundred twenty-three trillion, three hundred two billion, three hundred one million, twenty-one thousand, two hundred twenty-one".