213100211021 has 8 divisors (see below), whose sum is σ = 217800835200. Its totient is φ = 208406527648.

The previous prime is 213100210951. The next prime is 213100211083. The reversal of 213100211021 is 120112001312.

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 213100211021 - 2¹⁰ = 213100209997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213100210987 and 213100211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213100210021) 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, 1673096 + ... + 1795953.

It is an arithmetic number, because the mean of its divisors is an integer number (27225104400).

Almost surely, 2^213100211021 is an apocalyptic number.

It is an amenable number.

213100211021 is a deficient number, since it is larger than the sum of its proper divisors (4700624179).

213100211021 is a wasteful number, since it uses less digits than its factorization.

213100211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470403.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 213100211021 its reverse (120112001312), we get a palindrome (333212212333).

The spelling of 213100211021 in words is "two hundred thirteen billion, one hundred million, two hundred eleven thousand, twenty-one".