199209009010 has 32 divisors (see below), whose sum is σ = 391194349632. Its totient is φ = 72435881280.

The previous prime is 199209009007. The next prime is 199209009011. The reversal of 199209009010 is 10900902991.

It is a super-2 number, since 2×199209009010² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (199209009011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2945029 + ... + 3011911.

It is an arithmetic number, because the mean of its divisors is an integer number (12224823426).

Almost surely, 2^199209009010 is an apocalyptic number.

199209009010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199209009010 is a deficient number, since it is larger than the sum of its proper divisors (191985340622).

199209009010 is a wasteful number, since it uses less digits than its factorization.

199209009010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93978.

The product of its (nonzero) digits is 13122, while the sum is 40.

It can be divided in two parts, 19 and 9209009010, that added together give a palindrome (9209009029).

The spelling of 199209009010 in words is "one hundred ninety-nine billion, two hundred nine million, nine thousand, ten".