123222203321121 has 6 divisors (see below), whose sum is σ = 177987627019410. Its totient is φ = 82148135547408.

The previous prime is 123222203321117. The next prime is 123222203321141. The reversal of 123222203321121 is 121123302222321.

123222203321121 is a `hidden beast` number, since 1 + 2 + 3 + 222 + 203 + 3 + 211 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 111806515299600 + 11415688021521 = 10573860^2 + 3378711^2 .

It is not a de Polignac number, because 123222203321121 - 2² = 123222203321117 is a prime.

It is a super-2 number, since 2×123222203321121² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123222203321111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6845677962276 + ... + 6845677962293.

It is an arithmetic number, because the mean of its divisors is an integer number (29664604503235).

Almost surely, 2^{123222203321121} is an apocalyptic number.

It is an amenable number.

123222203321121 is a deficient number, since it is larger than the sum of its proper divisors (54765423698289).

123222203321121 is a wasteful number, since it uses less digits than its factorization.

123222203321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13691355924575 (or 13691355924572 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 123222203321121 its reverse (121123302222321), we get a palindrome (244345505543442).

The spelling of 123222203321121 in words is "one hundred twenty-three trillion, two hundred twenty-two billion, two hundred three million, three hundred twenty-one thousand, one hundred twenty-one".