210111100002 has 12 divisors (see below), whose sum is σ = 455240716710. Its totient is φ = 70037033328.

The previous prime is 210111099967. The next prime is 210111100013. The reversal of 210111100002 is 200001111012.

It is a happy number.

210111100002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 121486405401 + 88624694601 = 348549^2 + 297699^2 .

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

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 5 ways as a sum of consecutive naturals, for example, 5836419427 + ... + 5836419462.

Almost surely, 2^210111100002 is an apocalyptic number.

210111100002 is an abundant number, since it is smaller than the sum of its proper divisors (245129616708).

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

210111100002 is a wasteful number, since it uses less digits than its factorization.

210111100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11672838897 (or 11672838894 counting only the distinct ones).

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

Adding to 210111100002 its reverse (200001111012), we get a palindrome (410112211014).

The spelling of 210111100002 in words is "two hundred ten billion, one hundred eleven million, one hundred thousand, two".