221010220202001 has 16 divisors (see below), whose sum is σ = 312099284490624. Its totient is φ = 138635365577984.

The previous prime is 221010220201919. The next prime is 221010220202027. The reversal of 221010220202001 is 100202022010122.

It is a cyclic number.

It is not a de Polignac number, because 221010220202001 - 2⁹ = 221010220201489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221010220202071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589088205 + ... + 589463258.

It is an arithmetic number, because the mean of its divisors is an integer number (19506205280664).

Almost surely, 2^{221010220202001} is an apocalyptic number.

It is an amenable number.

221010220202001 is a deficient number, since it is larger than the sum of its proper divisors (91089064288623).

221010220202001 is a wasteful number, since it uses less digits than its factorization.

221010220202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178555160.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221010220202001 its reverse (100202022010122), we get a palindrome (321212242212123).

The spelling of 221010220202001 in words is "two hundred twenty-one trillion, ten billion, two hundred twenty million, two hundred two thousand, one".