221000012202212 has 12 divisors (see below), whose sum is σ = 394978745212800. Its totient is φ = 108148942141416.

The previous prime is 221000012202139. The next prime is 221000012202269. The reversal of 221000012202212 is 212202210000122.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587765989712 + ... + 587765990087.

It is an arithmetic number, because the mean of its divisors is an integer number (32914895434400).

Almost surely, 2^{221000012202212} is an apocalyptic number.

It is an amenable number.

221000012202212 is a deficient number, since it is larger than the sum of its proper divisors (173978733010588).

221000012202212 is a wasteful number, since it uses less digits than its factorization.

221000012202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175531979850 (or 1175531979848 counting only the distinct ones).

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

Adding to 221000012202212 its reverse (212202210000122), we get a palindrome (433202222202334).

The spelling of 221000012202212 in words is "two hundred twenty-one trillion, twelve million, two hundred two thousand, two hundred twelve".