202221021221001 has 96 divisors (see below), whose sum is σ = 306644120365440. Its totient is φ = 128287689062400.

The previous prime is 202221021220993. The next prime is 202221021221027. The reversal of 202221021221001 is 100122120122202.

It is a happy number.

202221021221001 is a `hidden beast` number, since 20 + 2 + 221 + 0 + 212 + 210 + 0 + 1 = 666.

It is not a de Polignac number, because 202221021221001 - 2³ = 202221021220993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202221011221001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3226059006 + ... + 3226121688.

It is an arithmetic number, because the mean of its divisors is an integer number (3194209587140).

Almost surely, 2^{202221021221001} is an apocalyptic number.

It is an amenable number.

202221021221001 is a deficient number, since it is larger than the sum of its proper divisors (104423099144439).

202221021221001 is a wasteful number, since it uses less digits than its factorization.

202221021221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63687 (or 63684 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202221021221001 its reverse (100122120122202), we get a palindrome (302343141343203).

The spelling of 202221021221001 in words is "two hundred two trillion, two hundred twenty-one billion, twenty-one million, two hundred twenty-one thousand, one".