12220321123 has 8 divisors (see below), whose sum is σ = 12960282528. Its totient is φ = 11482706304.

The previous prime is 12220321109. The next prime is 12220321147. The reversal of 12220321123 is 32112302221.

12220321123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12220321123 - 2²¹ = 12218223971 is a prime.

It is a super-2 number, since 2×12220321123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12220321123.

It is not an unprimeable number, because it can be changed into a prime (12220301123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575911 + ... + 596752.

It is an arithmetic number, because the mean of its divisors is an integer number (1620035316).

Almost surely, 2^12220321123 is an apocalyptic number.

12220321123 is a deficient number, since it is larger than the sum of its proper divisors (739961405).

12220321123 is a wasteful number, since it uses less digits than its factorization.

12220321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173293.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12220321123 its reverse (32112302221), we get a palindrome (44332623344).

The spelling of 12220321123 in words is "twelve billion, two hundred twenty million, three hundred twenty-one thousand, one hundred twenty-three".