22011111111111 has 8 divisors (see below), whose sum is σ = 29360015585520. Its totient is φ = 14668140355392.

The previous prime is 22011111111053. The next prime is 22011111111131. The reversal of 22011111111111 is 11111111111022.

It is a happy number.

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

It is not a de Polignac number, because 22011111111111 - 2¹⁴ = 22011111094727 is a prime.

22011111111111 is a modest number, since divided by 11111111 gives 220111 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011111111131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1483421016 + ... + 1483435853.

It is an arithmetic number, because the mean of its divisors is an integer number (3670001948190).

Almost surely, 2^{22011111111111} is an apocalyptic number.

22011111111111 is a deficient number, since it is larger than the sum of its proper divisors (7348904474409).

22011111111111 is a wasteful number, since it uses less digits than its factorization.

22011111111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966859345.

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 22011111111111 its reverse (11111111111022), we get a palindrome (33122222222133).

The spelling of 22011111111111 in words is "twenty-two trillion, eleven billion, one hundred eleven million, one hundred eleven thousand, one hundred eleven".