19872119224 has 48 divisors (see below), whose sum is σ = 38548855800. Its totient is φ = 9603581760.

The previous prime is 19872119221. The next prime is 19872119233. The reversal of 19872119224 is 42291127891.

It is a super-2 number, since 2×19872119224² (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 (19872119221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12138534 + ... + 12140170.

Almost surely, 2^19872119224 is an apocalyptic number.

It is an amenable number.

19872119224 is a deficient number, since it is larger than the sum of its proper divisors (18676736576).

19872119224 is a wasteful number, since it uses less digits than its factorization.

19872119224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284 (or 3249 counting only the distinct ones).

The product of its digits is 145152, while the sum is 46.

The spelling of 19872119224 in words is "nineteen billion, eight hundred seventy-two million, one hundred nineteen thousand, two hundred twenty-four".