22011020212 has 12 divisors (see below), whose sum is σ = 40546616320. Its totient is φ = 10426272696.

The previous prime is 22011020189. The next prime is 22011020221. The reversal of 22011020212 is 21202011022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22011020192 and 22011020201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144809268 + ... + 144809419.

Almost surely, 2^22011020212 is an apocalyptic number.

It is an amenable number.

22011020212 is a deficient number, since it is larger than the sum of its proper divisors (18535596108).

22011020212 is a wasteful number, since it uses less digits than its factorization.

22011020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289618710 (or 289618708 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22011020212 its reverse (21202011022), we get a palindrome (43213031234).

The spelling of 22011020212 in words is "twenty-two billion, eleven million, twenty thousand, two hundred twelve".