222120002001 has 8 divisors (see below), whose sum is σ = 296249734144. Its totient is φ = 148035135600.

The previous prime is 222120001991. The next prime is 222120002009. The reversal of 222120002001 is 100200021222.

222120002001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222120002001 - 2⁶ = 222120001937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222120002009) 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 7 ways as a sum of consecutive naturals, for example, 11204881 + ... + 11224686.

It is an arithmetic number, because the mean of its divisors is an integer number (37031216768).

Almost surely, 2^222120002001 is an apocalyptic number.

It is an amenable number.

222120002001 is a deficient number, since it is larger than the sum of its proper divisors (74129732143).

222120002001 is a wasteful number, since it uses less digits than its factorization.

222120002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22432871.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 222120002001 its reverse (100200021222), we get a palindrome (322320023223).

The spelling of 222120002001 in words is "two hundred twenty-two billion, one hundred twenty million, two thousand, one".