22121011000111 has 24 divisors (see below), whose sum is σ = 23985234516240. Its totient is φ = 20330788538112.

The previous prime is 22121011000097. The next prime is 22121011000171. The reversal of 22121011000111 is 11100011012122.

It is a happy number.

It is not a de Polignac number, because 22121011000111 - 2¹¹ = 22121010998063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22121011000091 and 22121011000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121011000171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15971125 + ... + 17300833.

It is an arithmetic number, because the mean of its divisors is an integer number (999384771510).

Almost surely, 2^{22121011000111} is an apocalyptic number.

22121011000111 is a deficient number, since it is larger than the sum of its proper divisors (1864223516129).

22121011000111 is a wasteful number, since it uses less digits than its factorization.

22121011000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330263 (or 1330216 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 22121011000111 its reverse (11100011012122), we get a palindrome (33221022012233).

The spelling of 22121011000111 in words is "twenty-two trillion, one hundred twenty-one billion, eleven million, one hundred eleven", and thus it is an aban number.