22202220212 has 12 divisors (see below), whose sum is σ = 40107236736. Its totient is φ = 10743009720.

The previous prime is 22202220211. The next prime is 22202220223. The reversal of 22202220212 is 21202220222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202220211) 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, 89524958 + ... + 89525205.

It is an arithmetic number, because the mean of its divisors is an integer number (3342269728).

Almost surely, 2^22202220212 is an apocalyptic number.

It is an amenable number.

22202220212 is a deficient number, since it is larger than the sum of its proper divisors (17905016524).

22202220212 is a wasteful number, since it uses less digits than its factorization.

22202220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179050198 (or 179050196 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 22202220212 its reverse (21202220222), we get a palindrome (43404440434).

The spelling of 22202220212 in words is "twenty-two billion, two hundred two million, two hundred twenty thousand, two hundred twelve".