212003203120 has 80 divisors (see below), whose sum is σ = 513919964160. Its totient is φ = 81232284672.

The previous prime is 212003203117. The next prime is 212003203127. The reversal of 212003203120 is 21302300212.

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 (16).

It is a junction number, because it is equal to n+sod(n) for n = 212003203094 and 212003203103.

It is not an unprimeable number, because it can be changed into a prime (212003203127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65127 + ... + 654406.

It is an arithmetic number, because the mean of its divisors is an integer number (6423999552).

Almost surely, 2^212003203120 is an apocalyptic number.

212003203120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212003203120 is an abundant number, since it is smaller than the sum of its proper divisors (301916761040).

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

212003203120 is a wasteful number, since it uses less digits than its factorization.

212003203120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719702 (or 719696 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 212003203120 its reverse (21302300212), we get a palindrome (233305503332).

The spelling of 212003203120 in words is "two hundred twelve billion, three million, two hundred three thousand, one hundred twenty".