212002100220 has 48 divisors (see below), whose sum is σ = 594745327008. Its totient is φ = 56425374720.

The previous prime is 212002100161. The next prime is 212002100257. The reversal of 212002100220 is 22001200212.

212002100220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 = 212002100196 and 212002100205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3359689 + ... + 3422208.

It is an arithmetic number, because the mean of its divisors is an integer number (12390527646).

Almost surely, 2^212002100220 is an apocalyptic number.

212002100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212002100220 is an abundant number, since it is smaller than the sum of its proper divisors (382743226788).

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

212002100220 is a wasteful number, since it uses less digits than its factorization.

212002100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6782430 (or 6782428 counting only the distinct ones).

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

Adding to 212002100220 its reverse (22001200212), we get a palindrome (234003300432).

The spelling of 212002100220 in words is "two hundred twelve billion, two million, one hundred thousand, two hundred twenty".