211112082 has 24 divisors (see below), whose sum is σ = 474351696. Its totient is φ = 70370532.

The previous prime is 211112081. The next prime is 211112113. The reversal of 211112082 is 280211112.

It is a super-2 number, since 2×211112082² = 89136622332749448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (211112081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216708 + ... + 217679.

It is an arithmetic number, because the mean of its divisors is an integer number (19764654).

Almost surely, 2^211112082 is an apocalyptic number.

211112082 is an abundant number, since it is smaller than the sum of its proper divisors (263239614).

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

211112082 is an equidigital number, since it uses as much as digits as its factorization.

211112082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434404 (or 434392 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 211112082 is about 14529.6965556752. The cubic root of 211112082 is about 595.4395753650.

Adding to 211112082 its reverse (280211112), we get a palindrome (491323194).

The spelling of 211112082 in words is "two hundred eleven million, one hundred twelve thousand, eighty-two".