199021010 has 16 divisors (see below), whose sum is σ = 377092800. Its totient is φ = 75418416.

The previous prime is 199021007. The next prime is 199021019. The reversal of 199021010 is 10120991.

It is not an unprimeable number, because it can be changed into a prime (199021019) 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, 523550 + ... + 523929.

It is an arithmetic number, because the mean of its divisors is an integer number (23568300).

Almost surely, 2^199021010 is an apocalyptic number.

199021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199021010 is a deficient number, since it is larger than the sum of its proper divisors (178071790).

199021010 is a wasteful number, since it uses less digits than its factorization.

199021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047505.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 199021010 is about 14107.4806397174. The cubic root of 199021010 is about 583.8477917745.

The spelling of 199021010 in words is "one hundred ninety-nine million, twenty-one thousand, ten".