20020221102011 has 32 divisors (see below), whose sum is σ = 21845411938560. Its totient is φ = 18237072240000.

The previous prime is 20020221101897. The next prime is 20020221102053. The reversal of 20020221102011 is 11020112202002.

It is a cyclic number.

It is not a de Polignac number, because 20020221102011 - 2¹⁸ = 20020220839867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020221102611) 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 31 ways as a sum of consecutive naturals, for example, 507450836 + ... + 507490286.

It is an arithmetic number, because the mean of its divisors is an integer number (682669123080).

Almost surely, 2^{20020221102011} is an apocalyptic number.

20020221102011 is a deficient number, since it is larger than the sum of its proper divisors (1825190836549).

20020221102011 is a wasteful number, since it uses less digits than its factorization.

20020221102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40827.

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

Adding to 20020221102011 its reverse (11020112202002), we get a palindrome (31040333304013).

The spelling of 20020221102011 in words is "twenty trillion, twenty billion, two hundred twenty-one million, one hundred two thousand, eleven".