210201213323021 has 4 divisors (see below), whose sum is σ = 210622458240000. Its totient is φ = 209779968406044.

The previous prime is 210201213322993. The next prime is 210201213323027. The reversal of 210201213323021 is 120323312102012.

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 210201213323021 - 2¹⁰ = 210201213321997 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 (210201213323027) 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, 210622457741 + ... + 210622458738.

It is an arithmetic number, because the mean of its divisors is an integer number (52655614560000).

Almost surely, 2^{210201213323021} is an apocalyptic number.

It is an amenable number.

210201213323021 is a deficient number, since it is larger than the sum of its proper divisors (421244916979).

210201213323021 is an equidigital number, since it uses as much as digits as its factorization.

210201213323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421244916978.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 210201213323021 its reverse (120323312102012), we get a palindrome (330524525425033).

The spelling of 210201213323021 in words is "two hundred ten trillion, two hundred one billion, two hundred thirteen million, three hundred twenty-three thousand, twenty-one".