221002100022212 has 12 divisors (see below), whose sum is σ = 386756711126016. Its totient is φ = 110500182557640.

The previous prime is 221002100022203. The next prime is 221002100022233. The reversal of 221002100022212 is 212220001200122.

It is a happy 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, 216289964 + ... + 217309347.

It is an arithmetic number, because the mean of its divisors is an integer number (32229725927168).

Almost surely, 2^{221002100022212} is an apocalyptic number.

It is an amenable number.

221002100022212 is a deficient number, since it is larger than the sum of its proper divisors (165754611103804).

221002100022212 is a wasteful number, since it uses less digits than its factorization.

221002100022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433726738 (or 433726736 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221002100022212 its reverse (212220001200122), we get a palindrome (433222101222334).

The spelling of 221002100022212 in words is "two hundred twenty-one trillion, two billion, one hundred million, twenty-two thousand, two hundred twelve".