123300112221 has 64 divisors (see below), whose sum is σ = 219167907840. Its totient is φ = 67511344320.

The previous prime is 123300112217. The next prime is 123300112237. The reversal of 123300112221 is 122211003321.

123300112221 is a `hidden beast` number, since 1 + 2 + 330 + 0 + 112 + 221 = 666.

It is not a de Polignac number, because 123300112221 - 2² = 123300112217 is a prime.

It is a super-2 number, since 2×123300112221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123300112194 and 123300112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123300112211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 158265 + ... + 521198.

It is an arithmetic number, because the mean of its divisors is an integer number (3424498560).

Almost surely, 2^123300112221 is an apocalyptic number.

123300112221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123300112221 is a deficient number, since it is larger than the sum of its proper divisors (95867795619).

123300112221 is a wasteful number, since it uses less digits than its factorization.

123300112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679543 (or 679537 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 123300112221 its reverse (122211003321), we get a palindrome (245511115542).

The spelling of 123300112221 in words is "one hundred twenty-three billion, three hundred million, one hundred twelve thousand, two hundred twenty-one".