123222120121 has 8 divisors (see below), whose sum is σ = 123784164000. Its totient is φ = 122660245248.

The previous prime is 123222120037. The next prime is 123222120137. The reversal of 123222120121 is 121021222321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123222120121 - 2¹¹ = 123222118073 is a prime.

It is a super-2 number, since 2×123222120121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123222100121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1556505 + ... + 1633753.

It is an arithmetic number, because the mean of its divisors is an integer number (15473020500).

Almost surely, 2^123222120121 is an apocalyptic number.

It is an amenable number.

123222120121 is a deficient number, since it is larger than the sum of its proper divisors (562043879).

123222120121 is an equidigital number, since it uses as much as digits as its factorization.

123222120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84503.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 123222120121 its reverse (121021222321), we get a palindrome (244243342442).

The spelling of 123222120121 in words is "one hundred twenty-three billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twenty-one".