212001120121011 has 16 divisors (see below), whose sum is σ = 304416850483200. Its totient is φ = 130460091040800.

The previous prime is 212001120120989. The next prime is 212001120121051. The reversal of 212001120121011 is 110121021100212.

It is a happy number.

It is not a de Polignac number, because 212001120121011 - 2¹⁵ = 212001120088243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212001120121051) 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 15 ways as a sum of consecutive naturals, for example, 42101715 + ... + 46867436.

It is an arithmetic number, because the mean of its divisors is an integer number (19026053155200).

Almost surely, 2^{212001120121011} is an apocalyptic number.

212001120121011 is a deficient number, since it is larger than the sum of its proper divisors (92415730362189).

212001120121011 is a wasteful number, since it uses less digits than its factorization.

212001120121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89030266.

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

Adding to 212001120121011 its reverse (110121021100212), we get a palindrome (322122141221223).

The spelling of 212001120121011 in words is "two hundred twelve trillion, one billion, one hundred twenty million, one hundred twenty-one thousand, eleven".