11222012212011 has 6 divisors (see below), whose sum is σ = 16209573195140. Its totient is φ = 7481341474668.

The previous prime is 11222012212009. The next prime is 11222012212027. The reversal of 11222012212011 is 11021221022211.

It is not a de Polignac number, because 11222012212011 - 2¹ = 11222012212009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222012212031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 623445122881 + ... + 623445122898.

Almost surely, 2^{11222012212011} is an apocalyptic number.

11222012212011 is a deficient number, since it is larger than the sum of its proper divisors (4987560983129).

11222012212011 is a wasteful number, since it uses less digits than its factorization.

11222012212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246890245785 (or 1246890245782 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11222012212011 its reverse (11021221022211), we get a palindrome (22243233234222).

The spelling of 11222012212011 in words is "eleven trillion, two hundred twenty-two billion, twelve million, two hundred twelve thousand, eleven".