211132213121320 has 64 divisors (see below), whose sum is σ = 477164827903680. Its totient is φ = 84076506172416.

The previous prime is 211132213121281. The next prime is 211132213121353. The reversal of 211132213121320 is 23121312231112.

It is a super-2 number, since 2×211132213121320² (a number of 29 digits) contains 22 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 15 ways as a sum of consecutive naturals, for example, 178258507 + ... + 179439013.

It is an arithmetic number, because the mean of its divisors is an integer number (7455700435995).

Almost surely, 2^{211132213121320} is an apocalyptic number.

211132213121320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211132213121320 is an abundant number, since it is smaller than the sum of its proper divisors (266032614782360).

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

211132213121320 is a wasteful number, since it uses less digits than its factorization.

211132213121320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200442 (or 1200438 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 211132213121320 its reverse (23121312231112), we get a palindrome (234253525352432).

The spelling of 211132213121320 in words is "two hundred eleven trillion, one hundred thirty-two billion, two hundred thirteen million, one hundred twenty-one thousand, three hundred twenty".