22220201 has 4 divisors (see below), whose sum is σ = 22245504. Its totient is φ = 22194900.

The previous prime is 22220171. The next prime is 22220203. The reversal of 22220201 is 10202222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22220201 - 2⁶ = 22220137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22220203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11285 + ... + 13106.

It is an arithmetic number, because the mean of its divisors is an integer number (5561376).

Almost surely, 2^22220201 is an apocalyptic number.

It is an amenable number.

22220201 is a deficient number, since it is larger than the sum of its proper divisors (25303).

22220201 is an equidigital number, since it uses as much as digits as its factorization.

22220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25302.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 22220201 is about 4713.8308200444. The cubic root of 22220201 is about 281.1356976846.

Adding to 22220201 its reverse (10202222), we get a palindrome (32422423).

The spelling of 22220201 in words is "twenty-two million, two hundred twenty thousand, two hundred one".