212323320120121 has 16 divisors (see below), whose sum is σ = 246865062758400. Its totient is φ = 178836463407888.

The previous prime is 212323320120091. The next prime is 212323320120127. The reversal of 212323320120121 is 121021023323212.

It is a cyclic number.

It is not a de Polignac number, because 212323320120121 - 2⁷ = 212323320119993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212323320120127) 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 15 ways as a sum of consecutive naturals, for example, 100031151 + ... + 102131668.

It is an arithmetic number, because the mean of its divisors is an integer number (15429066422400).

Almost surely, 2^{212323320120121} is an apocalyptic number.

It is an amenable number.

212323320120121 is a deficient number, since it is larger than the sum of its proper divisors (34541742638279).

212323320120121 is a wasteful number, since it uses less digits than its factorization.

212323320120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202165428.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 212323320120121 its reverse (121021023323212), we get a palindrome (333344343443333).

The spelling of 212323320120121 in words is "two hundred twelve trillion, three hundred twenty-three billion, three hundred twenty million, one hundred twenty thousand, one hundred twenty-one".