212322303021 has 8 divisors (see below), whose sum is σ = 283824159840. Its totient is φ = 141184324112.

The previous prime is 212322303013. The next prime is 212322303113. The reversal of 212322303021 is 120303223212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 212322303021 - 2³ = 212322303013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212322302021) 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, 90968115 + ... + 90970448.

It is an arithmetic number, because the mean of its divisors is an integer number (35478019980).

Almost surely, 2^212322303021 is an apocalyptic number.

It is an amenable number.

212322303021 is a deficient number, since it is larger than the sum of its proper divisors (71501856819).

212322303021 is a wasteful number, since it uses less digits than its factorization.

212322303021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181938955.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212322303021 its reverse (120303223212), we get a palindrome (332625526233).

The spelling of 212322303021 in words is "two hundred twelve billion, three hundred twenty-two million, three hundred three thousand, twenty-one".