202221001200021 has 8 divisors (see below), whose sum is σ = 269762613690720. Its totient is φ = 134746694754672.

The previous prime is 202221001200007. The next prime is 202221001200041. The reversal of 202221001200021 is 120002100122202.

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

It is not a de Polignac number, because 202221001200021 - 2¹⁴ = 202221001183637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221001200041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16826504326 + ... + 16826516343.

It is an arithmetic number, because the mean of its divisors is an integer number (33720326711340).

Almost surely, 2^{202221001200021} is an apocalyptic number.

It is an amenable number.

202221001200021 is a deficient number, since it is larger than the sum of its proper divisors (67541612490699).

202221001200021 is a wasteful number, since it uses less digits than its factorization.

202221001200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33653022675.

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

Adding to 202221001200021 its reverse (120002100122202), we get a palindrome (322223101322223).

The spelling of 202221001200021 in words is "two hundred two trillion, two hundred twenty-one billion, one million, two hundred thousand, twenty-one".