22011444445 has 8 divisors (see below), whose sum is σ = 27265789440. Its totient is φ = 17041118160.

The previous prime is 22011444443. The next prime is 22011444449. The reversal of 22011444445 is 54444411022.

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

It is not a de Polignac number, because 22011444445 - 2¹ = 22011444443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011444443) 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, 71004505 + ... + 71004814.

It is an arithmetic number, because the mean of its divisors is an integer number (3408223680).

Almost surely, 2^22011444445 is an apocalyptic number.

It is an amenable number.

22011444445 is a deficient number, since it is larger than the sum of its proper divisors (5254344995).

22011444445 is a wasteful number, since it uses less digits than its factorization.

22011444445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142009355.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 22011444445 its reverse (54444411022), we get a palindrome (76455855467).

The spelling of 22011444445 in words is "twenty-two billion, eleven million, four hundred forty-four thousand, four hundred forty-five".