211313033220 has 192 divisors, whose sum is σ = 623504851200. Its totient is φ = 53402664960.

The previous prime is 211313033207. The next prime is 211313033233. The reversal of 211313033220 is 22330313112.

It is an interprime number because it is at equal distance from previous prime (211313033207) and next prime (211313033233).

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 63 ways as a sum of consecutive naturals, for example, 69992871 + ... + 69995889.

It is an arithmetic number, because the mean of its divisors is an integer number (3247421100).

Almost surely, 2^211313033220 is an apocalyptic number.

211313033220 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 211313033220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311752425600).

211313033220 is an abundant number, since it is smaller than the sum of its proper divisors (412191817980).

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

211313033220 is a wasteful number, since it uses less digits than its factorization.

211313033220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878 (or 3876 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 211313033220 its reverse (22330313112), we get a palindrome (233643346332).

The spelling of 211313033220 in words is "two hundred eleven billion, three hundred thirteen million, thirty-three thousand, two hundred twenty".