212132322321 has 16 divisors (see below), whose sum is σ = 291258713088. Its totient is φ = 137249859200.

The previous prime is 212132322263. The next prime is 212132322341. The reversal of 212132322321 is 123223231212.

It is a cyclic number.

It is not a de Polignac number, because 212132322321 - 2¹⁹ = 212131798033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212132322291 and 212132322300.

It is not an unprimeable number, because it can be changed into a prime (212132322341) 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, 4491306 + ... + 4538291.

It is an arithmetic number, because the mean of its divisors is an integer number (18203669568).

Almost surely, 2^212132322321 is an apocalyptic number.

It is an amenable number.

212132322321 is a deficient number, since it is larger than the sum of its proper divisors (79126390767).

212132322321 is a wasteful number, since it uses less digits than its factorization.

212132322321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9029832.

The product of its digits is 1728, while the sum is 24.

Adding to 212132322321 its reverse (123223231212), we get a palindrome (335355553533).

The spelling of 212132322321 in words is "two hundred twelve billion, one hundred thirty-two million, three hundred twenty-two thousand, three hundred twenty-one".