221200222202012 has 12 divisors (see below), whose sum is σ = 387113928292896. Its totient is φ = 110596242689760.

The previous prime is 221200222201993. The next prime is 221200222202023. The reversal of 221200222202012 is 210202222002122.

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, 966974153 + ... + 967202880.

It is an arithmetic number, because the mean of its divisors is an integer number (32259494024408).

Almost surely, 2^{221200222202012} is an apocalyptic number.

It is an amenable number.

221200222202012 is a deficient number, since it is larger than the sum of its proper divisors (165913706090884).

221200222202012 is a wasteful number, since it uses less digits than its factorization.

221200222202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934205628 (or 1934205626 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 221200222202012 its reverse (210202222002122), we get a palindrome (431402444204134).

The spelling of 221200222202012 in words is "two hundred twenty-one trillion, two hundred billion, two hundred twenty-two million, two hundred two thousand, twelve".