220221212120012 has 12 divisors (see below), whose sum is σ = 408056951869560. Its totient is φ = 103633511585856.

The previous prime is 220221212120011. The next prime is 220221212120027. The reversal of 220221212120012 is 210021212122022.

It is not an unprimeable number, because it can be changed into a prime (220221212120011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1619273618462 + ... + 1619273618597.

It is an arithmetic number, because the mean of its divisors is an integer number (34004745989130).

Almost surely, 2^{220221212120012} is an apocalyptic number.

It is an amenable number.

220221212120012 is a deficient number, since it is larger than the sum of its proper divisors (187835739749548).

220221212120012 is a wasteful number, since it uses less digits than its factorization.

220221212120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238547237080 (or 3238547237078 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 220221212120012 its reverse (210021212122022), we get a palindrome (430242424242034).

The spelling of 220221212120012 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred twelve million, one hundred twenty thousand, twelve".