11042222391 has 24 divisors (see below), whose sum is σ = 16510001664. Its totient is φ = 7106097600.

The previous prime is 11042222369. The next prime is 11042222417. The reversal of 11042222391 is 19322224011.

11042222391 is a `hidden beast` number, since 1 + 1 + 0 + 422 + 2 + 239 + 1 = 666.

11042222391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11042222391 - 2¹³ = 11042214199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11042222311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88260 + ... + 172841.

It is an arithmetic number, because the mean of its divisors is an integer number (687916736).

Almost surely, 2^11042222391 is an apocalyptic number.

11042222391 is a deficient number, since it is larger than the sum of its proper divisors (5467779273).

11042222391 is a wasteful number, since it uses less digits than its factorization.

11042222391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261271 (or 261268 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 11042222391 in words is "eleven billion, forty-two million, two hundred twenty-two thousand, three hundred ninety-one".