212013223133121 has 16 divisors (see below), whose sum is σ = 314766241358400. Its totient is φ = 141039488899584.

The previous prime is 212013223133059. The next prime is 212013223133177. The reversal of 212013223133121 is 121331322310212.

212013223133121 is a `hidden beast` number, since 2 + 1 + 2 + 0 + 1 + 32 + 2 + 313 + 312 + 1 = 666.

212013223133121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212013223133121 - 2²⁵ = 212013189578689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212013223133021) 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, 8407205376 + ... + 8407230593.

It is an arithmetic number, because the mean of its divisors is an integer number (19672890084900).

Almost surely, 2^{212013223133121} is an apocalyptic number.

It is an amenable number.

212013223133121 is a deficient number, since it is larger than the sum of its proper divisors (102753018225279).

212013223133121 is a wasteful number, since it uses less digits than its factorization.

212013223133121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16814436445 (or 16814436439 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 212013223133121 its reverse (121331322310212), we get a palindrome (333344545443333).

The spelling of 212013223133121 in words is "two hundred twelve trillion, thirteen billion, two hundred twenty-three million, one hundred thirty-three thousand, one hundred twenty-one".