22001220012043 has 2 divisors, whose sum is σ = 22001220012044. Its totient is φ = 22001220012042.

The previous prime is 22001220011977. The next prime is 22001220012053. The reversal of 22001220012043 is 34021002210022.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22001220012043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22001220012043.

It is not a weakly prime, because it can be changed into another prime (22001220012053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000610006021 + 11000610006022.

It is an arithmetic number, because the mean of its divisors is an integer number (11000610006022).

Almost surely, 2^{22001220012043} is an apocalyptic number.

22001220012043 is a deficient number, since it is larger than the sum of its proper divisors (1).

22001220012043 is an equidigital number, since it uses as much as digits as its factorization.

22001220012043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22001220012043 its reverse (34021002210022), we get a palindrome (56022222222065).

The spelling of 22001220012043 in words is "twenty-two trillion, one billion, two hundred twenty million, twelve thousand, forty-three".