222201001 has 8 divisors (see below), whose sum is σ = 243946944. Its totient is φ = 200712720.

The previous prime is 222200989. The next prime is 222201019. The reversal of 222201001 is 100102222.

222201001 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222201001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222201061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62605 + ... + 66058.

It is an arithmetic number, because the mean of its divisors is an integer number (30493368).

Almost surely, 2^222201001 is an apocalyptic number.

It is an amenable number.

222201001 is a deficient number, since it is larger than the sum of its proper divisors (21745943).

222201001 is a wasteful number, since it uses less digits than its factorization.

222201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128831.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 222201001 is about 14906.4080515730. The cubic root of 222201001 is about 605.6875829037.

Adding to 222201001 its reverse (100102222), we get a palindrome (322303223).

The spelling of 222201001 in words is "two hundred twenty-two million, two hundred one thousand, one".