202221102001 has 4 divisors (see below), whose sum is σ = 205239327472. Its totient is φ = 199202876532.

The previous prime is 202221101981. The next prime is 202221102007. The reversal of 202221102001 is 100201122202.

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 not a de Polignac number, because 202221102001 - 2¹⁷ = 202220970929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202221102007) 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, 1509112635 + ... + 1509112768.

It is an arithmetic number, because the mean of its divisors is an integer number (51309831868).

Almost surely, 2^202221102001 is an apocalyptic number.

It is an amenable number.

202221102001 is a deficient number, since it is larger than the sum of its proper divisors (3018225471).

202221102001 is an equidigital number, since it uses as much as digits as its factorization.

202221102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3018225470.

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

Adding to 202221102001 its reverse (100201122202), we get a palindrome (302422224203).

The spelling of 202221102001 in words is "two hundred two billion, two hundred twenty-one million, one hundred two thousand, one".