212132203121121 has 32 divisors (see below), whose sum is σ = 285598627411968. Its totient is φ = 140044676708160.

The previous prime is 212132203121117. The next prime is 212132203121123. The reversal of 212132203121121 is 121121302231212.

It is not a de Polignac number, because 212132203121121 - 2² = 212132203121117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212132203121091 and 212132203121100.

It is not an unprimeable number, because it can be changed into a prime (212132203121123) 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 31 ways as a sum of consecutive naturals, for example, 11041066911 + ... + 11041086123.

It is an arithmetic number, because the mean of its divisors is an integer number (8924957106624).

Almost surely, 2^{212132203121121} is an apocalyptic number.

It is an amenable number.

212132203121121 is a deficient number, since it is larger than the sum of its proper divisors (73466424290847).

212132203121121 is a wasteful number, since it uses less digits than its factorization.

212132203121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31061.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 212132203121121 its reverse (121121302231212), we get a palindrome (333253505352333).

The spelling of 212132203121121 in words is "two hundred twelve trillion, one hundred thirty-two billion, two hundred three million, one hundred twenty-one thousand, one hundred twenty-one".