22219904391 has 8 divisors (see below), whose sum is σ = 30128684160. Its totient is φ = 14562197112.

The previous prime is 22219904341. The next prime is 22219904411. The reversal of 22219904391 is 19340991222.

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

It is not a de Polignac number, because 22219904391 - 2⁷ = 22219904263 is a prime.

It is a super-2 number, since 2×22219904391² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22219904341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62767915 + ... + 62768268.

It is an arithmetic number, because the mean of its divisors is an integer number (3766085520).

Almost surely, 2^22219904391 is an apocalyptic number.

22219904391 is a deficient number, since it is larger than the sum of its proper divisors (7908779769).

22219904391 is a wasteful number, since it uses less digits than its factorization.

22219904391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125536245.

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 22219904391 in words is "twenty-two billion, two hundred nineteen million, nine hundred four thousand, three hundred ninety-one".