212201200020 has 24 divisors (see below), whose sum is σ = 594163360224. Its totient is φ = 56586986656.

The previous prime is 212201199901. The next prime is 212201200021. The reversal of 212201200020 is 20002102212.

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

It is a junction number, because it is equal to n+sod(n) for n = 212201199969 and 212201200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212201200021) 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 7 ways as a sum of consecutive naturals, for example, 1768343274 + ... + 1768343393.

It is an arithmetic number, because the mean of its divisors is an integer number (24756806676).

Almost surely, 2^212201200020 is an apocalyptic number.

212201200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212201200020 is an abundant number, since it is smaller than the sum of its proper divisors (381962160204).

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

212201200020 is a wasteful number, since it uses less digits than its factorization.

212201200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536686679 (or 3536686677 counting only the distinct ones).

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

Adding to 212201200020 its reverse (20002102212), we get a palindrome (232203302232).

The spelling of 212201200020 in words is "two hundred twelve billion, two hundred one million, two hundred thousand, twenty".