212032122221 has 8 divisors (see below), whose sum is σ = 212247972864. Its totient is φ = 211816328800.

The previous prime is 212032122151. The next prime is 212032122227. The reversal of 212032122221 is 122221230212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212032122221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212032122193 and 212032122202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212032122227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13409306 + ... + 13425108.

It is an arithmetic number, because the mean of its divisors is an integer number (26530996608).

Almost surely, 2^212032122221 is an apocalyptic number.

It is an amenable number.

212032122221 is a deficient number, since it is larger than the sum of its proper divisors (215850643).

212032122221 is a wasteful number, since it uses less digits than its factorization.

212032122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28611.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 212032122221 its reverse (122221230212), we get a palindrome (334253352433).

The spelling of 212032122221 in words is "two hundred twelve billion, thirty-two million, one hundred twenty-two thousand, two hundred twenty-one".