211021111010 has 64 divisors (see below), whose sum is σ = 404203976064. Its totient is φ = 79044633600.

The previous prime is 211021110973. The next prime is 211021111099. The reversal of 211021111010 is 10111120112.

211021111010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211021110982 and 211021111000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34415645 + ... + 34421775.

It is an arithmetic number, because the mean of its divisors is an integer number (6315687126).

Almost surely, 2^211021111010 is an apocalyptic number.

211021111010 is a deficient number, since it is larger than the sum of its proper divisors (193182865054).

211021111010 is a wasteful number, since it uses less digits than its factorization.

211021111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7139.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 211021111010 its reverse (10111120112), we get a palindrome (221132231122).

The spelling of 211021111010 in words is "two hundred eleven billion, twenty-one million, one hundred eleven thousand, ten".