22011343553 has 8 divisors (see below), whose sum is σ = 22036831488. Its totient is φ = 21985874064.

The previous prime is 22011343547. The next prime is 22011343561. The reversal of 22011343553 is 35534311022.

It is a happy number.

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 22011343553 - 2⁸ = 22011343297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011343583) 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, 4379600 + ... + 4384622.

It is an arithmetic number, because the mean of its divisors is an integer number (2754603936).

Almost surely, 2^22011343553 is an apocalyptic number.

It is an amenable number.

22011343553 is a deficient number, since it is larger than the sum of its proper divisors (25487935).

22011343553 is a wasteful number, since it uses less digits than its factorization.

22011343553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9223.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 22011343553 its reverse (35534311022), we get a palindrome (57545654575).

The spelling of 22011343553 in words is "twenty-two billion, eleven million, three hundred forty-three thousand, five hundred fifty-three".