220221011212 has 6 divisors (see below), whose sum is σ = 385386769628. Its totient is φ = 110110505604.

The previous prime is 220221011209. The next prime is 220221011221. The reversal of 220221011212 is 212110122022.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27527626398 + ... + 27527626405.

Almost surely, 2^220221011212 is an apocalyptic number.

It is an amenable number.

220221011212 is a deficient number, since it is larger than the sum of its proper divisors (165165758416).

220221011212 is a wasteful number, since it uses less digits than its factorization.

220221011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55055252807 (or 55055252805 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220221011212 its reverse (212110122022), we get a palindrome (432331133234).

The spelling of 220221011212 in words is "two hundred twenty billion, two hundred twenty-one million, eleven thousand, two hundred twelve".