210021011122011 has 16 divisors (see below), whose sum is σ = 286596734037504. Its totient is φ = 136730930533344.

The previous prime is 210021011122001. The next prime is 210021011122033. The reversal of 210021011122011 is 110221110120012.

It is a happy number.

It is not a de Polignac number, because 210021011122011 - 2⁵ = 210021011121979 is a prime.

It is a super-2 number, since 2×210021011122011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210021011122001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159682851 + ... + 160992716.

It is an arithmetic number, because the mean of its divisors is an integer number (17912295877344).

Almost surely, 2^{210021011122011} is an apocalyptic number.

210021011122011 is a deficient number, since it is larger than the sum of its proper divisors (76575722915493).

210021011122011 is a wasteful number, since it uses less digits than its factorization.

210021011122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320680690.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210021011122011 its reverse (110221110120012), we get a palindrome (320242121242023).

The spelling of 210021011122011 in words is "two hundred ten trillion, twenty-one billion, eleven million, one hundred twenty-two thousand, eleven".