22220020206 has 12 divisors (see below), whose sum is σ = 48143377152. Its totient is φ = 7406673396.

The previous prime is 22220020177. The next prime is 22220020213. The reversal of 22220020206 is 60202002222.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1234445567 = 22220020206 / (2 + 2 + 2 + 2 + 0 + 0 + 2 + 0 + 2 + 0 + 6).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 617222766 + ... + 617222801.

It is an arithmetic number, because the mean of its divisors is an integer number (4011948096).

Almost surely, 2^22220020206 is an apocalyptic number.

22220020206 is an abundant number, since it is smaller than the sum of its proper divisors (25923356946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22220020206 is a wasteful number, since it uses less digits than its factorization.

22220020206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234445575 (or 1234445572 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22220020206 its reverse (60202002222), we get a palindrome (82422022428).

The spelling of 22220020206 in words is "twenty-two billion, two hundred twenty million, twenty thousand, two hundred six".