212301230021 has 8 divisors (see below), whose sum is σ = 218178612288. Its totient is φ = 206457148000.

The previous prime is 212301229979. The next prime is 212301230027. The reversal of 212301230021 is 120032103212.

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 212301230021 - 2¹⁴ = 212301213637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212301230027) 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, 8312135 + ... + 8337636.

It is an arithmetic number, because the mean of its divisors is an integer number (27272326536).

Almost surely, 2^212301230021 is an apocalyptic number.

It is an amenable number.

212301230021 is a deficient number, since it is larger than the sum of its proper divisors (5877382267).

212301230021 is a wasteful number, since it uses less digits than its factorization.

212301230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16650123.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212301230021 its reverse (120032103212), we get a palindrome (332333333233).

The spelling of 212301230021 in words is "two hundred twelve billion, three hundred one million, two hundred thirty thousand, twenty-one".