212233020220 has 96 divisors (see below), whose sum is σ = 486278069760. Its totient is φ = 77335630080.

The previous prime is 212233020199. The next prime is 212233020227. The reversal of 212233020220 is 22020332212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212233020227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22244211 + ... + 22253749.

It is an arithmetic number, because the mean of its divisors is an integer number (5065396560).

Almost surely, 2^212233020220 is an apocalyptic number.

212233020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212233020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243139034880).

212233020220 is an abundant number, since it is smaller than the sum of its proper divisors (274045049540).

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

212233020220 is a wasteful number, since it uses less digits than its factorization.

212233020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10675 (or 10673 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 212233020220 its reverse (22020332212), we get a palindrome (234253352432).

The spelling of 212233020220 in words is "two hundred twelve billion, two hundred thirty-three million, twenty thousand, two hundred twenty".