11221042311 has 6 divisors (see below), whose sum is σ = 16208172240. Its totient is φ = 7480694868.

The previous prime is 11221042291. The next prime is 11221042337. The reversal of 11221042311 is 11324012211.

11221042311 is a `hidden beast` number, since 11 + 221 + 0 + 423 + 11 = 666.

It is not a de Polignac number, because 11221042311 - 2¹⁷ = 11220911239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221042351) 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, 623391231 + ... + 623391248.

It is an arithmetic number, because the mean of its divisors is an integer number (2701362040).

Almost surely, 2^11221042311 is an apocalyptic number.

11221042311 is a deficient number, since it is larger than the sum of its proper divisors (4987129929).

11221042311 is a wasteful number, since it uses less digits than its factorization.

11221042311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246782485 (or 1246782482 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11221042311 its reverse (11324012211), we get a palindrome (22545054522).

The spelling of 11221042311 in words is "eleven billion, two hundred twenty-one million, forty-two thousand, three hundred eleven".