211111122010 has 16 divisors (see below), whose sum is σ = 380015525376. Its totient is φ = 84441003088.

The previous prime is 211111122007. The next prime is 211111122043. The reversal of 211111122010 is 10221111112.

It is a happy number.

It is a super-2 number, since 2×211111122010² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165622 + ... + 670561.

It is an arithmetic number, because the mean of its divisors is an integer number (23750970336).

Almost surely, 2^211111122010 is an apocalyptic number.

211111122010 is a deficient number, since it is larger than the sum of its proper divisors (168904403366).

211111122010 is a wasteful number, since it uses less digits than its factorization.

211111122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861437.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211111122010 its reverse (10221111112), we get a palindrome (221332233122).

The spelling of 211111122010 in words is "two hundred eleven billion, one hundred eleven million, one hundred twenty-two thousand, ten".