22011311243 has 8 divisors (see below), whose sum is σ = 22279441296. Its totient is φ = 21743251200.

The previous prime is 22011311183. The next prime is 22011311263. The reversal of 22011311243 is 34211311022.

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

It is a cyclic number.

It is not a de Polignac number, because 22011311243 - 2¹² = 22011307147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011311263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914483 + ... + 938243.

It is an arithmetic number, because the mean of its divisors is an integer number (2784930162).

Almost surely, 2^22011311243 is an apocalyptic number.

22011311243 is a deficient number, since it is larger than the sum of its proper divisors (268130053).

22011311243 is a wasteful number, since it uses less digits than its factorization.

22011311243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35005.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 22011311243 its reverse (34211311022), we get a palindrome (56222622265).

The spelling of 22011311243 in words is "twenty-two billion, eleven million, three hundred eleven thousand, two hundred forty-three".