11010101211 has 12 divisors (see below), whose sum is σ = 16333303792. Its totient is φ = 7141687056.

The previous prime is 11010101183. The next prime is 11010101213. The reversal of 11010101211 is 11210101011.

It is not a de Polignac number, because 11010101211 - 2¹⁰ = 11010100187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11010101193 and 11010101202.

It is not an unprimeable number, because it can be changed into a prime (11010101213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16531351 + ... + 16532016.

Almost surely, 2^11010101211 is an apocalyptic number.

11010101211 is a deficient number, since it is larger than the sum of its proper divisors (5323202581).

11010101211 is a wasteful number, since it uses less digits than its factorization.

11010101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33063410 (or 33063407 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11010101211 its reverse (11210101011), we get a palindrome (22220202222).

The spelling of 11010101211 in words is "eleven billion, ten million, one hundred one thousand, two hundred eleven".