202221000120001 has 4 divisors (see below), whose sum is σ = 202230276760000. Its totient is φ = 202211723480004.

The previous prime is 202221000119987. The next prime is 202221000120071. The reversal of 202221000120001 is 100021000122202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202221000120001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202221000120071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4638287301 + ... + 4638330898.

It is an arithmetic number, because the mean of its divisors is an integer number (50557569190000).

Almost surely, 2^{202221000120001} is an apocalyptic number.

It is an amenable number.

202221000120001 is a deficient number, since it is larger than the sum of its proper divisors (9276639999).

202221000120001 is an equidigital number, since it uses as much as digits as its factorization.

202221000120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9276639998.

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

Adding to 202221000120001 its reverse (100021000122202), we get a palindrome (302242000242203).

The spelling of 202221000120001 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred twenty thousand, one".