211012110 has 48 divisors (see below), whose sum is σ = 563468256. Its totient is φ = 54748224.

The previous prime is 211012103. The next prime is 211012127. The reversal of 211012110 is 11210112.

It is a happy number.

It is a super-2 number, since 2×211012110² = 89052221133304200, which contains 22 as substring.

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 = 211012092 and 211012101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28354 + ... + 35013.

It is an arithmetic number, because the mean of its divisors is an integer number (11738922).

Almost surely, 2^211012110 is an apocalyptic number.

211012110 is an abundant number, since it is smaller than the sum of its proper divisors (352456146).

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

211012110 is a wasteful number, since it uses less digits than its factorization.

211012110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63417 (or 63414 counting only the distinct ones).

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

The square root of 211012110 is about 14526.2558837438. The cubic root of 211012110 is about 595.3455705067.

Adding to 211012110 its reverse (11210112), we get a palindrome (222222222).

The spelling of 211012110 in words is "two hundred eleven million, twelve thousand, one hundred ten".