220021222001 has 16 divisors (see below), whose sum is σ = 262402633728. Its totient is φ = 180378330000.

The previous prime is 220021221997. The next prime is 220021222013. The reversal of 220021222001 is 100222120022.

220021222001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 220021222001 - 2² = 220021221997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220021224001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3145316 + ... + 3214506.

It is an arithmetic number, because the mean of its divisors is an integer number (16400164608).

Almost surely, 2^220021222001 is an apocalyptic number.

It is an amenable number.

220021222001 is a deficient number, since it is larger than the sum of its proper divisors (42381411727).

220021222001 is a wasteful number, since it uses less digits than its factorization.

220021222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88972.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220021222001 its reverse (100222120022), we get a palindrome (320243342023).

The spelling of 220021222001 in words is "two hundred twenty billion, twenty-one million, two hundred twenty-two thousand, one".