123030220050221 has 12 divisors (see below), whose sum is σ = 135232387537632. Its totient is φ = 111844973625000.

The previous prime is 123030220050217. The next prime is 123030220050239. The reversal of 123030220050221 is 122050022030321.

It is not a de Polignac number, because 123030220050221 - 2² = 123030220050217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123030220050821) 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, 17420096 + ... + 23441846.

It is an arithmetic number, because the mean of its divisors is an integer number (11269365628136).

Almost surely, 2^{123030220050221} is an apocalyptic number.

123030220050221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123030220050221 is a deficient number, since it is larger than the sum of its proper divisors (12202167487411).

123030220050221 is a wasteful number, since it uses less digits than its factorization.

123030220050221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6190624 (or 6190613 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 123030220050221 its reverse (122050022030321), we get a palindrome (245080242080542).

The spelling of 123030220050221 in words is "one hundred twenty-three trillion, thirty billion, two hundred twenty million, fifty thousand, two hundred twenty-one".