210120020112011 has 4 divisors (see below), whose sum is σ = 211186619199072. Its totient is φ = 209053421024952.

The previous prime is 210120020111971. The next prime is 210120020112103. The reversal of 210120020112011 is 110211020021012.

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

It is a cyclic number.

It is not a de Polignac number, because 210120020112011 - 2¹⁴ = 210120020095627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210120020112911) 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 3 ways as a sum of consecutive naturals, for example, 533299543235 + ... + 533299543628.

It is an arithmetic number, because the mean of its divisors is an integer number (52796654799768).

Almost surely, 2^{210120020112011} is an apocalyptic number.

210120020112011 is a deficient number, since it is larger than the sum of its proper divisors (1066599087061).

210120020112011 is a wasteful number, since it uses less digits than its factorization.

210120020112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066599087060.

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

Adding to 210120020112011 its reverse (110211020021012), we get a palindrome (320331040133023).

Subtracting from 210120020112011 its reverse (110211020021012), we obtain a palindrome (99909000090999).

The spelling of 210120020112011 in words is "two hundred ten trillion, one hundred twenty billion, twenty million, one hundred twelve thousand, eleven".