20002021201211 has 4 divisors (see below), whose sum is σ = 22859452801392. Its totient is φ = 17144589601032.

The previous prime is 20002021201177. The next prime is 20002021201219. The reversal of 20002021201211 is 11210212020002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20002021201211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002021201219) 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, 1428715800080 + ... + 1428715800093.

It is an arithmetic number, because the mean of its divisors is an integer number (5714863200348).

Almost surely, 2^{20002021201211} is an apocalyptic number.

20002021201211 is a deficient number, since it is larger than the sum of its proper divisors (2857431600181).

20002021201211 is an equidigital number, since it uses as much as digits as its factorization.

20002021201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857431600180.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20002021201211 its reverse (11210212020002), we get a palindrome (31212233221213).

The spelling of 20002021201211 in words is "twenty trillion, two billion, twenty-one million, two hundred one thousand, two hundred eleven".