22021110312111 has 12 divisors (see below), whose sum is σ = 31821205932360. Its totient is φ = 14674769985840.

The previous prime is 22021110312077. The next prime is 22021110312151. The reversal of 22021110312111 is 11121301112022.

It is a happy number.

22021110312111 is a `hidden beast` number, since 2 + 20 + 211 + 10 + 312 + 111 = 666.

It is not a de Polignac number, because 22021110312111 - 2⁷ = 22021110311983 is a prime.

It is a super-2 number, since 2×22021110312111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021110312151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 497495160 + ... + 497539421.

It is an arithmetic number, because the mean of its divisors is an integer number (2651767161030).

Almost surely, 2^{22021110312111} is an apocalyptic number.

22021110312111 is a deficient number, since it is larger than the sum of its proper divisors (9800095620249).

22021110312111 is a wasteful number, since it uses less digits than its factorization.

22021110312111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995037046 (or 995037043 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 22021110312111 its reverse (11121301112022), we get a palindrome (33142411424133).

The spelling of 22021110312111 in words is "twenty-two trillion, twenty-one billion, one hundred ten million, three hundred twelve thousand, one hundred eleven".