110221010200021 has 12 divisors (see below), whose sum is σ = 128220384368640. Its totient is φ = 94472125244280.

The previous prime is 110221010199997. The next prime is 110221010200031. The reversal of 110221010200021 is 120002010122011.

It is not a de Polignac number, because 110221010200021 - 2³¹ = 110218862716373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110221010199974 and 110221010200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110221010200031) 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, 34482111 + ... + 37542748.

It is an arithmetic number, because the mean of its divisors is an integer number (10685032030720).

Almost surely, 2^{110221010200021} is an apocalyptic number.

It is an amenable number.

110221010200021 is a deficient number, since it is larger than the sum of its proper divisors (17999374168619).

110221010200021 is an equidigital number, since it uses as much as digits as its factorization.

110221010200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72056104 (or 72056097 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 110221010200021 its reverse (120002010122011), we get a palindrome (230223020322032).

The spelling of 110221010200021 in words is "one hundred ten trillion, two hundred twenty-one billion, ten million, two hundred thousand, twenty-one".