20002220210001 has 4 divisors (see below), whose sum is σ = 26669626946672. Its totient is φ = 13334813473332.

The previous prime is 20002220209999. The next prime is 20002220210009. The reversal of 20002220210001 is 10001202220002.

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 not a de Polignac number, because 20002220210001 - 2¹ = 20002220209999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002220210009) 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, 3333703368331 + ... + 3333703368336.

It is an arithmetic number, because the mean of its divisors is an integer number (6667406736668).

Almost surely, 2^{20002220210001} is an apocalyptic number.

It is an amenable number.

20002220210001 is a deficient number, since it is larger than the sum of its proper divisors (6667406736671).

20002220210001 is an equidigital number, since it uses as much as digits as its factorization.

20002220210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667406736670.

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

Adding to 20002220210001 its reverse (10001202220002), we get a palindrome (30003422430003).

The spelling of 20002220210001 in words is "twenty trillion, two billion, two hundred twenty million, two hundred ten thousand, one".