22220020202 has 4 divisors (see below), whose sum is σ = 33330030306. Its totient is φ = 11110010100.

The previous prime is 22220020177. The next prime is 22220020213. The reversal of 22220020202 is 20202002222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11327132041 + 10892888161 = 106429^2 + 104369^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555005049 + ... + 5555005052.

Almost surely, 2^22220020202 is an apocalyptic number.

22220020202 is a deficient number, since it is larger than the sum of its proper divisors (11110010104).

22220020202 is a wasteful number, since it uses less digits than its factorization.

22220020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110010103.

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 22220020202 its reverse (20202002222), we get a palindrome (42422022424).

The spelling of 22220020202 in words is "twenty-two billion, two hundred twenty million, twenty thousand, two hundred two".