22022000221 has 8 divisors (see below), whose sum is σ = 23782066560. Its totient is φ = 20271371952.

The previous prime is 22022000213. The next prime is 22022000239. The reversal of 22022000221 is 12200022022.

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

It is not a de Polignac number, because 22022000221 - 2³ = 22022000213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022000201) 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, 2354665 + ... + 2363998.

It is an arithmetic number, because the mean of its divisors is an integer number (2972758320).

Almost surely, 2^22022000221 is an apocalyptic number.

It is an amenable number.

22022000221 is a deficient number, since it is larger than the sum of its proper divisors (1760066339).

22022000221 is a wasteful number, since it uses less digits than its factorization.

22022000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4719035.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22022000221 its reverse (12200022022), we get a palindrome (34222022243).

The spelling of 22022000221 in words is "twenty-two billion, twenty-two million, two hundred twenty-one", and thus it is an aban number.