211118465220 has 48 divisors (see below), whose sum is σ = 636603374400. Its totient is φ = 51967622016.

The previous prime is 211118465203. The next prime is 211118465221. The reversal of 211118465220 is 22564811112.

It is not an unprimeable number, because it can be changed into a prime (211118465221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135331570 + ... + 135333129.

It is an arithmetic number, because the mean of its divisors is an integer number (13262570300).

Almost surely, 2^211118465220 is an apocalyptic number.

211118465220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211118465220 is an abundant number, since it is smaller than the sum of its proper divisors (425484909180).

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

211118465220 is a wasteful number, since it uses less digits than its factorization.

211118465220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270664724 (or 270664722 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The spelling of 211118465220 in words is "two hundred eleven billion, one hundred eighteen million, four hundred sixty-five thousand, two hundred twenty".