211120211200220 has 72 divisors (see below), whose sum is σ = 529675340777856. Its totient is φ = 70427746118016.

The previous prime is 211120211200193. The next prime is 211120211200229. The reversal of 211120211200220 is 22002112021112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120211200229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2911163564 + ... + 2911236083.

It is an arithmetic number, because the mean of its divisors is an integer number (7356601955248).

Almost surely, 2^{211120211200220} is an apocalyptic number.

211120211200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211120211200220 is an abundant number, since it is smaller than the sum of its proper divisors (318555129577636).

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

211120211200220 is a wasteful number, since it uses less digits than its factorization.

211120211200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5822399707 (or 5822399698 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211120211200220 its reverse (22002112021112), we get a palindrome (233122323221332).

The spelling of 211120211200220 in words is "two hundred eleven trillion, one hundred twenty billion, two hundred eleven million, two hundred thousand, two hundred twenty".