199124348412 has 72 divisors (see below), whose sum is σ = 511200078928. Its totient is φ = 60281844480.

The previous prime is 199124348407. The next prime is 199124348413. The reversal of 199124348412 is 214843421991.

It is a super-2 number, since 2×199124348412² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199124348413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1433538 + ... + 1566294.

Almost surely, 2^199124348412 is an apocalyptic number.

199124348412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199124348412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255600039464).

199124348412 is an abundant number, since it is smaller than the sum of its proper divisors (312075730516).

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

199124348412 is a wasteful number, since it uses less digits than its factorization.

199124348412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133819 (or 133806 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The spelling of 199124348412 in words is "one hundred ninety-nine billion, one hundred twenty-four million, three hundred forty-eight thousand, four hundred twelve".