213021223000 has 32 divisors (see below), whose sum is σ = 498469664160. Its totient is φ = 85208488800.

The previous prime is 213021222989. The next prime is 213021223001. The reversal of 213021223000 is 322120312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213021223001) 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, 106509612 + ... + 106511611.

It is an arithmetic number, because the mean of its divisors is an integer number (15577177005).

Almost surely, 2^213021223000 is an apocalyptic number.

213021223000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213021223000 is an abundant number, since it is smaller than the sum of its proper divisors (285448441160).

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

213021223000 is a wasteful number, since it uses less digits than its factorization.

213021223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213021244 (or 213021230 counting only the distinct ones).

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

Adding to 213021223000 its reverse (322120312), we get a palindrome (213343343312).

The spelling of 213021223000 in words is "two hundred thirteen billion, twenty-one million, two hundred twenty-three thousand".