210111211020002 has 4 divisors (see below), whose sum is σ = 315166816530006. Its totient is φ = 105055605510000.

The previous prime is 210111211019971. The next prime is 210111211020023. The reversal of 210111211020002 is 200020112111012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 193041596511481 + 17069614508521 = 13893941^2 + 4131539^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 52527802754999 + ... + 52527802755002.

Almost surely, 2^{210111211020002} is an apocalyptic number.

210111211020002 is a deficient number, since it is larger than the sum of its proper divisors (105055605510004).

210111211020002 is a wasteful number, since it uses less digits than its factorization.

210111211020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105055605510003.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210111211020002 its reverse (200020112111012), we get a palindrome (410131323131014).

The spelling of 210111211020002 in words is "two hundred ten trillion, one hundred eleven billion, two hundred eleven million, twenty thousand, two".