212221120001 has 16 divisors (see below), whose sum is σ = 235007494080. Its totient is φ = 190017938880.

The previous prime is 212221119983. The next prime is 212221120009. The reversal of 212221120001 is 100021122212.

It is a de Polignac number, because none of the positive numbers 2^k-212221120001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212221120009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5367035 + ... + 5406431.

It is an arithmetic number, because the mean of its divisors is an integer number (14687968380).

Almost surely, 2^212221120001 is an apocalyptic number.

It is an amenable number.

212221120001 is a deficient number, since it is larger than the sum of its proper divisors (22786374079).

212221120001 is a wasteful number, since it uses less digits than its factorization.

212221120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46784.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212221120001 its reverse (100021122212), we get a palindrome (312242242213).

The spelling of 212221120001 in words is "two hundred twelve billion, two hundred twenty-one million, one hundred twenty thousand, one".