202221121202001 has 12 divisors (see below), whose sum is σ = 318651463712400. Its totient is φ = 122558255273880.

The previous prime is 202221121201999. The next prime is 202221121202003. The reversal of 202221121202001 is 100202121122202.

It is a happy number.

202221121202001 is a `hidden beast` number, since 20 + 22 + 211 + 212 + 0 + 200 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (202221121201999) and next prime (202221121202003).

It is not a de Polignac number, because 202221121202001 - 2¹ = 202221121201999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202221121202003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1021318793851 + ... + 1021318794048.

It is an arithmetic number, because the mean of its divisors is an integer number (26554288642700).

Almost surely, 2^{202221121202001} is an apocalyptic number.

It is an amenable number.

202221121202001 is a deficient number, since it is larger than the sum of its proper divisors (116430342510399).

202221121202001 is a wasteful number, since it uses less digits than its factorization.

202221121202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042637587916 (or 2042637587913 counting only the distinct ones).

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

Adding to 202221121202001 its reverse (100202121122202), we get a palindrome (302423242324203).

The spelling of 202221121202001 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred two thousand, one".