22219786387 has 8 divisors (see below), whose sum is σ = 23194874880. Its totient is φ = 21245448840.

The previous prime is 22219786363. The next prime is 22219786397. The reversal of 22219786387 is 78368791222.

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 a de Polignac number, because none of the positive numbers 2^k-22219786387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22219786307) 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, 126837 + ... + 246022.

It is an arithmetic number, because the mean of its divisors is an integer number (2899359360).

Almost surely, 2^22219786387 is an apocalyptic number.

22219786387 is a deficient number, since it is larger than the sum of its proper divisors (975088493).

22219786387 is a wasteful number, since it uses less digits than its factorization.

22219786387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375473.

The product of its digits is 4064256, while the sum is 55.

The spelling of 22219786387 in words is "twenty-two billion, two hundred nineteen million, seven hundred eighty-six thousand, three hundred eighty-seven".