213220201320 has 192 divisors, whose sum is σ = 808123680000. Its totient is φ = 48736017792.

The previous prime is 213220201297. The next prime is 213220201331. The reversal of 213220201320 is 23102022312.

213220201320 is a `hidden beast` number, since 2 + 1 + 322 + 0 + 20 + 1 + 320 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 213220201293 and 213220201302.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 739900 + ... + 986859.

It is an arithmetic number, because the mean of its divisors is an integer number (4208977500).

Almost surely, 2^213220201320 is an apocalyptic number.

213220201320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213220201320 is an abundant number, since it is smaller than the sum of its proper divisors (594903478680).

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

213220201320 is a wasteful number, since it uses less digits than its factorization.

213220201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726797 (or 1726776 counting only the distinct ones).

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

Adding to 213220201320 its reverse (23102022312), we get a palindrome (236322223632).

The spelling of 213220201320 in words is "two hundred thirteen billion, two hundred twenty million, two hundred one thousand, three hundred twenty".