221010202001 has 8 divisors (see below), whose sum is σ = 222870977664. Its totient is φ = 219155161680.

The previous prime is 221010201953. The next prime is 221010202013. The reversal of 221010202001 is 100202010122.

It is a happy number.

221010202001 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-221010202001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221010202031) 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, 1356425 + ... + 1510598.

It is an arithmetic number, because the mean of its divisors is an integer number (27858872208).

Almost surely, 2^221010202001 is an apocalyptic number.

It is an amenable number.

221010202001 is a deficient number, since it is larger than the sum of its proper divisors (1860775663).

221010202001 is a wasteful number, since it uses less digits than its factorization.

221010202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867671.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 221010202001 its reverse (100202010122), we get a palindrome (321212212123).

The spelling of 221010202001 in words is "two hundred twenty-one billion, ten million, two hundred two thousand, one".