22121021101110 has 32 divisors (see below), whose sum is σ = 53090585920512. Its totient is φ = 5898923929440.

The previous prime is 22121021101097. The next prime is 22121021101129. The reversal of 22121021101110 is 1110112012122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22121021101110.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 16092717 + ... + 17413143.

It is an arithmetic number, because the mean of its divisors is an integer number (1659080810016).

Almost surely, 2^{22121021101110} is an apocalyptic number.

22121021101110 is an abundant number, since it is smaller than the sum of its proper divisors (30969564819402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22121021101110 is a wasteful number, since it uses less digits than its factorization.

22121021101110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878868.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 22121021101110 its reverse (1110112012122), we get a palindrome (23231133113232).

The spelling of 22121021101110 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-one million, one hundred one thousand, one hundred ten".