22121000000110 has 16 divisors (see below), whose sum is σ = 43437600000432. Its totient is φ = 8044000000000.

The previous prime is 22121000000089. The next prime is 22121000000117. The reversal of 22121000000110 is 1100000012122.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121000000117) 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 in 7 ways as a sum of consecutive naturals, for example, 100549999891 + ... + 100550000110.

It is an arithmetic number, because the mean of its divisors is an integer number (2714850000027).

Almost surely, 2^{22121000000110} is an apocalyptic number.

22121000000110 is a deficient number, since it is larger than the sum of its proper divisors (21316600000322).

22121000000110 is a wasteful number, since it uses less digits than its factorization.

22121000000110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201100000019.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22121000000110 its reverse (1100000012122), we get a palindrome (23221000012232).

The spelling of 22121000000110 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred ten", and thus it is an aban number.