210011121121111 has 8 divisors (see below), whose sum is σ = 213094306560240. Its totient is φ = 206949421295232.

The previous prime is 210011121121093. The next prime is 210011121121121. The reversal of 210011121121111 is 111121121110012.

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

It is a cyclic number.

It is not a de Polignac number, because 210011121121111 - 2¹⁵ = 210011121088343 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 (210011121121121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5371383621 + ... + 5371422718.

It is an arithmetic number, because the mean of its divisors is an integer number (26636788320030).

Almost surely, 2^{210011121121111} is an apocalyptic number.

210011121121111 is a deficient number, since it is larger than the sum of its proper divisors (3083185439129).

210011121121111 is a wasteful number, since it uses less digits than its factorization.

210011121121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10742806625.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 210011121121111 its reverse (111121121110012), we get a palindrome (321132242231123).

The spelling of 210011121121111 in words is "two hundred ten trillion, eleven billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred eleven".