211372213320 has 96 divisors (see below), whose sum is σ = 687218875200. Its totient is φ = 56344657536.

The previous prime is 211372213307. The next prime is 211372213331. The reversal of 211372213320 is 23312273112.

211372213320 is a `hidden beast` number, since 2 + 113 + 7 + 221 + 3 + 320 = 666.

It is a super-3 number, since 3×211372213320³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 856461 + ... + 1075299.

It is an arithmetic number, because the mean of its divisors is an integer number (7158529950).

Almost surely, 2^211372213320 is an apocalyptic number.

211372213320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211372213320 is an abundant number, since it is smaller than the sum of its proper divisors (475846661880).

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

211372213320 is a wasteful number, since it uses less digits than its factorization.

211372213320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221539 (or 221532 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

Adding to 211372213320 its reverse (23312273112), we get a palindrome (234684486432).

The spelling of 211372213320 in words is "two hundred eleven billion, three hundred seventy-two million, two hundred thirteen thousand, three hundred twenty".