212323300322021 has 4 divisors (see below), whose sum is σ = 242655200368032. Its totient is φ = 181991400276012.

The previous prime is 212323300321987. The next prime is 212323300322051. The reversal of 212323300322021 is 120223003323212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212323300322021 - 2¹⁰ = 212323300320997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212323300322051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15165950022995 + ... + 15165950023008.

It is an arithmetic number, because the mean of its divisors is an integer number (60663800092008).

Almost surely, 2^{212323300322021} is an apocalyptic number.

It is an amenable number.

212323300322021 is a deficient number, since it is larger than the sum of its proper divisors (30331900046011).

212323300322021 is an equidigital number, since it uses as much as digits as its factorization.

212323300322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30331900046010.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 212323300322021 its reverse (120223003323212), we get a palindrome (332546303645233).

The spelling of 212323300322021 in words is "two hundred twelve trillion, three hundred twenty-three billion, three hundred million, three hundred twenty-two thousand, twenty-one".