12219127943 has 16 divisors (see below), whose sum is σ = 14083376640. Its totient is φ = 10484769600.

The previous prime is 12219127939. The next prime is 12219127957. The reversal of 12219127943 is 34972191221.

It is a cyclic number.

It is not a de Polignac number, because 12219127943 - 2² = 12219127939 is a prime.

It is a super-2 number, since 2×12219127943² (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 12219127943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12219127933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51230 + ... + 164507.

It is an arithmetic number, because the mean of its divisors is an integer number (880211040).

Almost surely, 2^12219127943 is an apocalyptic number.

12219127943 is a deficient number, since it is larger than the sum of its proper divisors (1864248697).

12219127943 is a wasteful number, since it uses less digits than its factorization.

12219127943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216038.

The product of its digits is 54432, while the sum is 41.

The spelling of 12219127943 in words is "twelve billion, two hundred nineteen million, one hundred twenty-seven thousand, nine hundred forty-three".