210111110020102 has 32 divisors (see below), whose sum is σ = 339611264382240. Its totient is φ = 97128535879680.

The previous prime is 210111110020001. The next prime is 210111110020103. The reversal of 210111110020102 is 201020011111012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210111110020103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35749383 + ... + 41209714.

It is an arithmetic number, because the mean of its divisors is an integer number (10612852011945).

Almost surely, 2^{210111110020102} is an apocalyptic number.

210111110020102 is a deficient number, since it is larger than the sum of its proper divisors (129500154362138).

210111110020102 is a wasteful number, since it uses less digits than its factorization.

210111110020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76960536.

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

Adding to 210111110020102 its reverse (201020011111012), we get a palindrome (411131121131114).

The spelling of 210111110020102 in words is "two hundred ten trillion, one hundred eleven billion, one hundred ten million, twenty thousand, one hundred two".