22020010221 has 16 divisors (see below), whose sum is σ = 32340072960. Its totient is φ = 13215891120.

The previous prime is 22020010183. The next prime is 22020010231. The reversal of 22020010221 is 12201002022.

It is not a de Polignac number, because 22020010221 - 2³⁰ = 20946268397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22020010197 and 22020010206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020010231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3235791 + ... + 3242588.

It is an arithmetic number, because the mean of its divisors is an integer number (2021254560).

Almost surely, 2^22020010221 is an apocalyptic number.

It is an amenable number.

22020010221 is a deficient number, since it is larger than the sum of its proper divisors (10320062739).

22020010221 is a wasteful number, since it uses less digits than its factorization.

22020010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6478496.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22020010221 its reverse (12201002022), we get a palindrome (34221012243).

The spelling of 22020010221 in words is "twenty-two billion, twenty million, ten thousand, two hundred twenty-one".