199747878222 has 16 divisors (see below), whose sum is σ = 406266871680. Its totient is φ = 65454106872.

The previous prime is 199747878221. The next prime is 199747878271. The reversal of 199747878222 is 222878747991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199747878221) 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, 282129418 + ... + 282130125.

It is an arithmetic number, because the mean of its divisors is an integer number (25391679480).

Almost surely, 2^199747878222 is an apocalyptic number.

199747878222 is an abundant number, since it is smaller than the sum of its proper divisors (206518993458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199747878222 is a wasteful number, since it uses less digits than its factorization.

199747878222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564259607.

The product of its digits is 56899584, while the sum is 66.

The spelling of 199747878222 in words is "one hundred ninety-nine billion, seven hundred forty-seven million, eight hundred seventy-eight thousand, two hundred twenty-two".