22111313011 has 4 divisors (see below), whose sum is σ = 22112189352. Its totient is φ = 22110436672.

The previous prime is 22111312967. The next prime is 22111313017. The reversal of 22111313011 is 11031311122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22111313011 - 2¹³ = 22111304819 is a prime.

It is a super-2 number, since 2×22111313011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111313017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399166 + ... + 451171.

It is an arithmetic number, because the mean of its divisors is an integer number (5528047338).

Almost surely, 2^22111313011 is an apocalyptic number.

22111313011 is a deficient number, since it is larger than the sum of its proper divisors (876341).

22111313011 is an equidigital number, since it uses as much as digits as its factorization.

22111313011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876340.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 22111313011 its reverse (11031311122), we get a palindrome (33142624133).

The spelling of 22111313011 in words is "twenty-two billion, one hundred eleven million, three hundred thirteen thousand, eleven".