212000100240 has 80 divisors (see below), whose sum is σ = 658962520128. Its totient is φ = 56381772288.

The previous prime is 212000100239. The next prime is 212000100251. The reversal of 212000100240 is 42001000212.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1094574 + ... + 1273613.

Almost surely, 2^212000100240 is an apocalyptic number.

212000100240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212000100240 is an abundant number, since it is smaller than the sum of its proper divisors (446962419888).

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

212000100240 is a wasteful number, since it uses less digits than its factorization.

212000100240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368576 (or 2368570 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 212000100240 its reverse (42001000212), we get a palindrome (254001100452).

The spelling of 212000100240 in words is "two hundred twelve billion, one hundred thousand, two hundred forty".