202221002001 has 32 divisors (see below), whose sum is σ = 281837445120. Its totient is φ = 128868854400.

The previous prime is 202221001987. The next prime is 202221002021. The reversal of 202221002001 is 100200122202.

It is not a de Polignac number, because 202221002001 - 2¹⁹ = 202220477713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202221002021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1193496 + ... + 1352358.

It is an arithmetic number, because the mean of its divisors is an integer number (8807420160).

Almost surely, 2^202221002001 is an apocalyptic number.

It is an amenable number.

202221002001 is a deficient number, since it is larger than the sum of its proper divisors (79616443119).

202221002001 is a wasteful number, since it uses less digits than its factorization.

202221002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159117.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 202221002001 its reverse (100200122202), we get a palindrome (302421124203).

The spelling of 202221002001 in words is "two hundred two billion, two hundred twenty-one million, two thousand, one".