213021202312101 has 8 divisors (see below), whose sum is σ = 284028584889024. Its totient is φ = 142013977304960.

The previous prime is 213021202312081. The next prime is 213021202312123. The reversal of 213021202312101 is 101213202120312.

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 213021202312101 - 2¹⁰ = 213021202311077 is a prime.

It is a super-2 number, since 2×213021202312101² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213021202312141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36201036 + ... + 41672021.

It is an arithmetic number, because the mean of its divisors is an integer number (35503573111128).

Almost surely, 2^{213021202312101} is an apocalyptic number.

It is an amenable number.

213021202312101 is a deficient number, since it is larger than the sum of its proper divisors (71007382576923).

213021202312101 is an equidigital number, since it uses as much as digits as its factorization.

213021202312101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78784891.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 213021202312101 its reverse (101213202120312), we get a palindrome (314234404432413).

The spelling of 213021202312101 in words is "two hundred thirteen trillion, twenty-one billion, two hundred two million, three hundred twelve thousand, one hundred one".