22011213311 has 4 divisors (see below), whose sum is σ = 22013586624. Its totient is φ = 22008840000.

The previous prime is 22011213293. The next prime is 22011213313. The reversal of 22011213311 is 11331211022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11331211022 = 2 ⋅5665605511.

It is a cyclic number.

It is not a de Polignac number, because 22011213311 - 2³⁴ = 4831344127 is a prime.

It is a super-2 number, since 2×22011213311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22011213311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011213313) 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, 1172690 + ... + 1191311.

It is an arithmetic number, because the mean of its divisors is an integer number (5503396656).

Almost surely, 2^22011213311 is an apocalyptic number.

22011213311 is a deficient number, since it is larger than the sum of its proper divisors (2373313).

22011213311 is an equidigital number, since it uses as much as digits as its factorization.

22011213311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373312.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 22011213311 its reverse (11331211022), we get a palindrome (33342424333).

The spelling of 22011213311 in words is "twenty-two billion, eleven million, two hundred thirteen thousand, three hundred eleven".