210112221020111 has 4 divisors (see below), whose sum is σ = 210194392403592. Its totient is φ = 210030049636632.

The previous prime is 210112221020089. The next prime is 210112221020137. The reversal of 210112221020111 is 111020122211012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210112221020111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210112221020111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210112221020311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41085687905 + ... + 41085693018.

It is an arithmetic number, because the mean of its divisors is an integer number (52548598100898).

Almost surely, 2^{210112221020111} is an apocalyptic number.

210112221020111 is a deficient number, since it is larger than the sum of its proper divisors (82171383481).

210112221020111 is an equidigital number, since it uses as much as digits as its factorization.

210112221020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82171383480.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 210112221020111 its reverse (111020122211012), we get a palindrome (321132343231123).

The spelling of 210112221020111 in words is "two hundred ten trillion, one hundred twelve billion, two hundred twenty-one million, twenty thousand, one hundred eleven".