20002021022111 has 16 divisors (see below), whose sum is σ = 20536573075200. Its totient is φ = 19469704201920.

The previous prime is 20002021022017. The next prime is 20002021022117. The reversal of 20002021022111 is 11122012020002.

It is a cyclic number.

It is not a de Polignac number, because 20002021022111 - 2²⁶ = 20001953913247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002021022117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147115040 + ... + 147250938.

It is an arithmetic number, because the mean of its divisors is an integer number (1283535817200).

Almost surely, 2^{20002021022111} is an apocalyptic number.

20002021022111 is a deficient number, since it is larger than the sum of its proper divisors (534552053089).

20002021022111 is a wasteful number, since it uses less digits than its factorization.

20002021022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144094.

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

Adding to 20002021022111 its reverse (11122012020002), we get a palindrome (31124033042113).

The spelling of 20002021022111 in words is "twenty trillion, two billion, twenty-one million, twenty-two thousand, one hundred eleven".