209029912100 has 36 divisors (see below), whose sum is σ = 453737927664. Its totient is φ = 83585602080.

The previous prime is 209029912093. The next prime is 209029912109. The reversal of 209029912100 is 1219920902.

It is not an unprimeable number, because it can be changed into a prime (209029912109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9242 + ... + 646641.

It is an arithmetic number, because the mean of its divisors is an integer number (12603831324).

Almost surely, 2^209029912100 is an apocalyptic number.

209029912100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

209029912100 is an abundant number, since it is smaller than the sum of its proper divisors (244708015564).

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

209029912100 is a wasteful number, since it uses less digits than its factorization.

209029912100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659084 (or 659077 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 209029912100 in words is "two hundred nine billion, twenty-nine million, nine hundred twelve thousand, one hundred".