221121200222212 has 24 divisors (see below), whose sum is σ = 422941498721280. Its totient is φ = 100700356836480.

The previous prime is 221121200222207. The next prime is 221121200222267. The reversal of 221121200222212 is 212222002121122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52448100412 + ... + 52448104627.

It is an arithmetic number, because the mean of its divisors is an integer number (17622562446720).

Almost surely, 2^{221121200222212} is an apocalyptic number.

It is an amenable number.

221121200222212 is a deficient number, since it is larger than the sum of its proper divisors (201820298499068).

221121200222212 is a wasteful number, since it uses less digits than its factorization.

221121200222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104896205091 (or 104896205089 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 221121200222212 its reverse (212222002121122), we get a palindrome (433343202343334).

The spelling of 221121200222212 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, two hundred million, two hundred twenty-two thousand, two hundred twelve".