12221123221123 has 8 divisors (see below), whose sum is σ = 12234336097280. Its totient is φ = 12207911534280.

The previous prime is 12221123221117. The next prime is 12221123221133. The reversal of 12221123221123 is 32112232112221.

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 12221123221123 - 2⁵ = 12221123221091 is a prime.

It is a super-2 number, since 2×12221123221123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221123221133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21095548 + ... + 21667126.

It is an arithmetic number, because the mean of its divisors is an integer number (1529292012160).

Almost surely, 2^{12221123221123} is an apocalyptic number.

12221123221123 is a deficient number, since it is larger than the sum of its proper divisors (13212876157).

12221123221123 is an equidigital number, since it uses as much as digits as its factorization.

12221123221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594657.

The product of its digits is 1152, while the sum is 25.

Adding to 12221123221123 its reverse (32112232112221), we get a palindrome (44333355333344).

The spelling of 12221123221123 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-three million, two hundred twenty-one thousand, one hundred twenty-three".