22010020221 has 8 divisors (see below), whose sum is σ = 33539078464. Its totient is φ = 12577154400.

The previous prime is 22010020211. The next prime is 22010020247. The reversal of 22010020221 is 12202001022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22010020221 - 2⁵ = 22010020189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22010020197 and 22010020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010020211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524048080 + ... + 524048121.

It is an arithmetic number, because the mean of its divisors is an integer number (4192384808).

Almost surely, 2^22010020221 is an apocalyptic number.

22010020221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22010020221 is a deficient number, since it is larger than the sum of its proper divisors (11529058243).

22010020221 is a wasteful number, since it uses less digits than its factorization.

22010020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048096211.

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

Adding to 22010020221 its reverse (12202001022), we get a palindrome (34212021243).

The spelling of 22010020221 in words is "twenty-two billion, ten million, twenty thousand, two hundred twenty-one".