211112010 has 48 divisors (see below), whose sum is σ = 563735016. Its totient is φ = 54774144.

The previous prime is 211111997. The next prime is 211112023. The reversal of 211112010 is 10211112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (211111997) and next prime (211112023).

It can be written as a sum of positive squares in 4 ways, for example, as 192682161 + 18429849 = 13881^2 + 4293^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 211111983 and 211112001.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 28369 + ... + 35028.

Almost surely, 2^211112010 is an apocalyptic number.

211112010 is an abundant number, since it is smaller than the sum of its proper divisors (352623006).

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

211112010 is a wasteful number, since it uses less digits than its factorization.

211112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63447 (or 63444 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 211112010 is about 14529.6940779908. The cubic root of 211112010 is about 595.4395076732.

Adding to 211112010 its reverse (10211112), we get a palindrome (221323122).

The spelling of 211112010 in words is "two hundred eleven million, one hundred twelve thousand, ten".