210111002002 has 24 divisors (see below), whose sum is σ = 366800497308. Its totient is φ = 89887057920.

The previous prime is 210111001999. The next prime is 210111002081. The reversal of 210111002002 is 200200111012.

It can be written as a sum of positive squares in 2 ways, for example, as 163765093041 + 46345908961 = 404679^2 + 215281^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 210111002002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25531983 + ... + 25540210.

Almost surely, 2^210111002002 is an apocalyptic number.

210111002002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210111002002 is a deficient number, since it is larger than the sum of its proper divisors (156689495306).

210111002002 is a wasteful number, since it uses less digits than its factorization.

210111002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51072234 (or 51072223 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 210111002002 its reverse (200200111012), we get a palindrome (410311113014).

The spelling of 210111002002 in words is "two hundred ten billion, one hundred eleven million, two thousand, two".