212133331330121 has 16 divisors (see below), whose sum is σ = 230327444977344. Its totient is φ = 194594178476544.

The previous prime is 212133331330097. The next prime is 212133331330147. The reversal of 212133331330121 is 121033133331212.

It is a cyclic number.

It is not a de Polignac number, because 212133331330121 - 2¹⁰ = 212133331329097 is a prime.

It is a super-2 number, since 2×212133331330121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212133331330171) 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, 310361060 + ... + 311043813.

It is an arithmetic number, because the mean of its divisors is an integer number (14395465311084).

Almost surely, 2^{212133331330121} is an apocalyptic number.

It is an amenable number.

212133331330121 is a deficient number, since it is larger than the sum of its proper divisors (18194113647223).

212133331330121 is a wasteful number, since it uses less digits than its factorization.

212133331330121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621405400.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 212133331330121 its reverse (121033133331212), we get a palindrome (333166464661333).

The spelling of 212133331330121 in words is "two hundred twelve trillion, one hundred thirty-three billion, three hundred thirty-one million, three hundred thirty thousand, one hundred twenty-one".