123122033221 has 12 divisors (see below), whose sum is σ = 138787463232. Its totient is φ = 108318495000.

The previous prime is 123122033213. The next prime is 123122033291. The reversal of 123122033221 is 122330221321.

It is not a de Polignac number, because 123122033221 - 2³ = 123122033213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123122033192 and 123122033201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123122033291) 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, 5813005 + ... + 5834146.

It is an arithmetic number, because the mean of its divisors is an integer number (11565621936).

Almost surely, 2^123122033221 is an apocalyptic number.

123122033221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123122033221 is a deficient number, since it is larger than the sum of its proper divisors (15665430011).

123122033221 is a wasteful number, since it uses less digits than its factorization.

123122033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11647224 (or 11647193 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 123122033221 its reverse (122330221321), we get a palindrome (245452254542).

The spelling of 123122033221 in words is "one hundred twenty-three billion, one hundred twenty-two million, thirty-three thousand, two hundred twenty-one".