22143212112011 has 8 divisors (see below), whose sum is σ = 22154938405200. Its totient is φ = 22131487556640.

The previous prime is 22143212111957. The next prime is 22143212112013. The reversal of 22143212112011 is 11021121234122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22143212112011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22143212112013) 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, 25463945 + ... + 26319173.

It is an arithmetic number, because the mean of its divisors is an integer number (2769367300650).

Almost surely, 2^{22143212112011} is an apocalyptic number.

22143212112011 is a deficient number, since it is larger than the sum of its proper divisors (11726293189).

22143212112011 is a wasteful number, since it uses less digits than its factorization.

22143212112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868909.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 22143212112011 its reverse (11021121234122), we get a palindrome (33164333346133).

The spelling of 22143212112011 in words is "twenty-two trillion, one hundred forty-three billion, two hundred twelve million, one hundred twelve thousand, eleven".