22121311030111 has 2 divisors, whose sum is σ = 22121311030112. Its totient is φ = 22121311030110.

The previous prime is 22121311030087. The next prime is 22121311030163. The reversal of 22121311030111 is 11103011312122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22121311030111 - 2⁴³ = 13325218007903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22121311030711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060655515055 + 11060655515056.

It is an arithmetic number, because the mean of its divisors is an integer number (11060655515056).

Almost surely, 2^{22121311030111} is an apocalyptic number.

22121311030111 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121311030111 is an equidigital number, since it uses as much as digits as its factorization.

22121311030111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 22121311030111 its reverse (11103011312122), we get a palindrome (33224322342233).

The spelling of 22121311030111 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred eleven million, thirty thousand, one hundred eleven".