20102211011 has 8 divisors (see below), whose sum is σ = 20135611680. Its totient is φ = 20068840512.

The previous prime is 20102211001. The next prime is 20102211013. The reversal of 20102211011 is 11011220102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20102211011 - 2¹⁰ = 20102209987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20102210983 and 20102211001.

It is not an unprimeable number, because it can be changed into a prime (20102211013) 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 7 ways as a sum of consecutive naturals, for example, 1595111 + ... + 1607663.

It is an arithmetic number, because the mean of its divisors is an integer number (2516951460).

Almost surely, 2^20102211011 is an apocalyptic number.

20102211011 is a deficient number, since it is larger than the sum of its proper divisors (33400669).

20102211011 is a wasteful number, since it uses less digits than its factorization.

20102211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15085.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20102211011 its reverse (11011220102), we get a palindrome (31113431113).

Subtracting from 20102211011 its reverse (11011220102), we obtain a palindrome (9090990909).

The spelling of 20102211011 in words is "twenty billion, one hundred two million, two hundred eleven thousand, eleven".