211000111002 has 32 divisors (see below), whose sum is σ = 474677900160. Its totient is φ = 70333368876.

The previous prime is 211000110991. The next prime is 211000111009. The reversal of 211000111002 is 200111000112.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (211000111009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24115438 + ... + 24124185.

It is an arithmetic number, because the mean of its divisors is an integer number (14833684380).

Almost surely, 2^211000111002 is an apocalyptic number.

211000111002 is an abundant number, since it is smaller than the sum of its proper divisors (263677789158).

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

211000111002 is an frugal number, since it uses more digits than its factorization.

211000111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48239646 (or 48239628 counting only the distinct ones).

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

Adding to 211000111002 its reverse (200111000112), we get a palindrome (411111111114).

The spelling of 211000111002 in words is "two hundred eleven billion, one hundred eleven thousand, two".