202221100002001 has 32 divisors (see below), whose sum is σ = 215845096896000. Its totient is φ = 188901696402432.

The previous prime is 202221100001971. The next prime is 202221100002011. The reversal of 202221100002001 is 100200001122202.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202221100002001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202221100002011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14007134155 + ... + 14007148591.

It is an arithmetic number, because the mean of its divisors is an integer number (6745159278000).

Almost surely, 2^{202221100002001} is an apocalyptic number.

It is an amenable number.

202221100002001 is a deficient number, since it is larger than the sum of its proper divisors (13623996893999).

202221100002001 is a wasteful number, since it uses less digits than its factorization.

202221100002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26281.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202221100002001 its reverse (100200001122202), we get a palindrome (302421101124203).

The spelling of 202221100002001 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred million, two thousand, one".