12221423043 has 16 divisors (see below), whose sum is σ = 16841779200. Its totient is φ = 7874994240.

The previous prime is 12221423041. The next prime is 12221423057. The reversal of 12221423043 is 34032412221.

It is a happy number.

12221423043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12221423043 - 2¹ = 12221423041 is a prime.

It is a super-3 number, since 3×12221423043³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12221423041) 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 15 ways as a sum of consecutive naturals, for example, 5983 + ... + 156456.

It is an arithmetic number, because the mean of its divisors is an integer number (1052611200).

Almost surely, 2^12221423043 is an apocalyptic number.

12221423043 is a deficient number, since it is larger than the sum of its proper divisors (4620356157).

12221423043 is a wasteful number, since it uses less digits than its factorization.

12221423043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163282.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12221423043 its reverse (34032412221), we get a palindrome (46253835264).

The spelling of 12221423043 in words is "twelve billion, two hundred twenty-one million, four hundred twenty-three thousand, forty-three".