213231022200 has 288 divisors, whose sum is σ = 840521753760. Its totient is φ = 47421158400.

The previous prime is 213231022133. The next prime is 213231022241. The reversal of 213231022200 is 2220132312.

213231022200 is a `hidden beast` number, since 2 + 132 + 310 + 2 + 220 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 237510 + ... + 694890.

Almost surely, 2^213231022200 is an apocalyptic number.

213231022200 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 213231022200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420260876880).

213231022200 is an abundant number, since it is smaller than the sum of its proper divisors (627290731560).

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

213231022200 is a wasteful number, since it uses less digits than its factorization.

213231022200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457447 (or 457435 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 213231022200 its reverse (2220132312), we get a palindrome (215451154512).

The spelling of 213231022200 in words is "two hundred thirteen billion, two hundred thirty-one million, twenty-two thousand, two hundred".