212021121134 has 8 divisors (see below), whose sum is σ = 318562621200. Its totient is φ = 105833580736.

The previous prime is 212021121131. The next prime is 212021121139. The reversal of 212021121134 is 431121120212.

212021121134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021121131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88488419 + ... + 88490814.

It is an arithmetic number, because the mean of its divisors is an integer number (39820327650).

Almost surely, 2^212021121134 is an apocalyptic number.

212021121134 is a deficient number, since it is larger than the sum of its proper divisors (106541500066).

212021121134 is a wasteful number, since it uses less digits than its factorization.

212021121134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176979834.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 212021121134 its reverse (431121120212), we get a palindrome (643142241346).

The spelling of 212021121134 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-one thousand, one hundred thirty-four".