20102202101011 has 4 divisors (see below), whose sum is σ = 20290073148792. Its totient is φ = 19914331053232.

The previous prime is 20102202100999. The next prime is 20102202101077. The reversal of 20102202101011 is 11010120220102.

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

It is a cyclic number.

It is not a de Polignac number, because 20102202101011 - 2⁹ = 20102202100499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20102202100982 and 20102202101000.

It is not an unprimeable number, because it can be changed into a prime (20102202102011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93935523730 + ... + 93935523943.

It is an arithmetic number, because the mean of its divisors is an integer number (5072518287198).

Almost surely, 2^{20102202101011} is an apocalyptic number.

20102202101011 is a deficient number, since it is larger than the sum of its proper divisors (187871047781).

20102202101011 is a wasteful number, since it uses less digits than its factorization.

20102202101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187871047780.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20102202101011 its reverse (11010120220102), we get a palindrome (31112322321113).

The spelling of 20102202101011 in words is "twenty trillion, one hundred two billion, two hundred two million, one hundred one thousand, eleven".