212332120121 has 16 divisors (see below), whose sum is σ = 245275656768. Its totient is φ = 181663411200.

The previous prime is 212332120097. The next prime is 212332120127. The reversal of 212332120121 is 121021233212.

It is a cyclic number.

It is not a de Polignac number, because 212332120121 - 2⁶ = 212332120057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212332120093 and 212332120102.

It is not an unprimeable number, because it can be changed into a prime (212332120127) 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, 4870406 + ... + 4913808.

It is an arithmetic number, because the mean of its divisors is an integer number (15329728548).

Almost surely, 2^212332120121 is an apocalyptic number.

It is an amenable number.

212332120121 is a deficient number, since it is larger than the sum of its proper divisors (32943536647).

212332120121 is a wasteful number, since it uses less digits than its factorization.

212332120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69592.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 212332120121 its reverse (121021233212), we get a palindrome (333353353333).

The spelling of 212332120121 in words is "two hundred twelve billion, three hundred thirty-two million, one hundred twenty thousand, one hundred twenty-one".