211310302220 has 24 divisors (see below), whose sum is σ = 444454912608. Its totient is φ = 84390163200.

The previous prime is 211310302211. The next prime is 211310302223. The reversal of 211310302220 is 22203013112.

It is not an unprimeable number, because it can be changed into a prime (211310302223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8359421 + ... + 8384660.

It is an arithmetic number, because the mean of its divisors is an integer number (18518954692).

Almost surely, 2^211310302220 is an apocalyptic number.

211310302220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211310302220 is an abundant number, since it is smaller than the sum of its proper divisors (233144610388).

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

211310302220 is a wasteful number, since it uses less digits than its factorization.

211310302220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16744721 (or 16744719 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 211310302220 its reverse (22203013112), we get a palindrome (233513315332).

The spelling of 211310302220 in words is "two hundred eleven billion, three hundred ten million, three hundred two thousand, two hundred twenty".