210211112021101 has 8 divisors (see below), whose sum is σ = 222612834424824. Its totient is φ = 197813429936640.

The previous prime is 210211112021089. The next prime is 210211112021147. The reversal of 210211112021101 is 101120211112012.

It can be written as a sum of positive squares in 4 ways, for example, as 6823724675076 + 203387387346025 = 2612226^2 + 14261395^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 210211112021101 - 2¹⁷ = 210211111890029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210211112021201) 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 7 ways as a sum of consecutive naturals, for example, 1009972690 + ... + 1010180803.

It is an arithmetic number, because the mean of its divisors is an integer number (27826604303103).

Almost surely, 2^{210211112021101} is an apocalyptic number.

It is an amenable number.

210211112021101 is a deficient number, since it is larger than the sum of its proper divisors (12401722403723).

210211112021101 is a wasteful number, since it uses less digits than its factorization.

210211112021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020159631.

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

Adding to 210211112021101 its reverse (101120211112012), we get a palindrome (311331323133113).

The spelling of 210211112021101 in words is "two hundred ten trillion, two hundred eleven billion, one hundred twelve million, twenty-one thousand, one hundred one".