22210110021 has 64 divisors (see below), whose sum is σ = 34906152960. Its totient is φ = 12419064000.

The previous prime is 22210110019. The next prime is 22210110023. The reversal of 22210110021 is 12001101222.

It is an interprime number because it is at equal distance from previous prime (22210110019) and next prime (22210110023).

It is not a de Polignac number, because 22210110021 - 2¹ = 22210110019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22210109979 and 22210110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210110023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3691906 + ... + 3697916.

It is an arithmetic number, because the mean of its divisors is an integer number (545408640).

Almost surely, 2^22210110021 is an apocalyptic number.

It is an amenable number.

22210110021 is a deficient number, since it is larger than the sum of its proper divisors (12696042939).

22210110021 is a wasteful number, since it uses less digits than its factorization.

22210110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6198.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22210110021 its reverse (12001101222), we get a palindrome (34211211243).

It can be divided in two parts, 22210 and 110021, that added together give a palindrome (132231).

The spelling of 22210110021 in words is "twenty-two billion, two hundred ten million, one hundred ten thousand, twenty-one".