213301110021 has 16 divisors (see below), whose sum is σ = 286867306944. Its totient is φ = 140972223744.

The previous prime is 213301110007. The next prime is 213301110067. The reversal of 213301110021 is 120011103312.

It is a happy number.

It is not a de Polignac number, because 213301110021 - 2¹¹ = 213301107973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213301111021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355236 + ... + 743501.

It is an arithmetic number, because the mean of its divisors is an integer number (17929206684).

Almost surely, 2^213301110021 is an apocalyptic number.

It is an amenable number.

213301110021 is a deficient number, since it is larger than the sum of its proper divisors (73566196923).

213301110021 is a wasteful number, since it uses less digits than its factorization.

213301110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099300.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 213301110021 its reverse (120011103312), we get a palindrome (333312213333).

The spelling of 213301110021 in words is "two hundred thirteen billion, three hundred one million, one hundred ten thousand, twenty-one".