220221121100012 has 48 divisors (see below), whose sum is σ = 386571668496384. Its totient is φ = 109772493408000.

The previous prime is 220221121100011. The next prime is 220221121100069. The reversal of 220221121100012 is 210001121122022.

220221121100012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (220221121100011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19891704437 + ... + 19891715507.

It is an arithmetic number, because the mean of its divisors is an integer number (8053576427008).

Almost surely, 2^{220221121100012} is an apocalyptic number.

It is an amenable number.

220221121100012 is a deficient number, since it is larger than the sum of its proper divisors (166350547396372).

220221121100012 is a wasteful number, since it uses less digits than its factorization.

220221121100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19230 (or 19228 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220221121100012 its reverse (210001121122022), we get a palindrome (430222242222034).

The spelling of 220221121100012 in words is "two hundred twenty trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred thousand, twelve".