213322121011 has 16 divisors (see below), whose sum is σ = 218886917920. Its totient is φ = 207825419520.

The previous prime is 213322121009. The next prime is 213322121039. The reversal of 213322121011 is 110121223312.

It is a cyclic number.

It is not a de Polignac number, because 213322121011 - 2¹ = 213322121009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213322121011.

It is not an unprimeable number, because it can be changed into a prime (213322121611) 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, 31399831 + ... + 31406623.

It is an arithmetic number, because the mean of its divisors is an integer number (13680432370).

Almost surely, 2^213322121011 is an apocalyptic number.

213322121011 is a deficient number, since it is larger than the sum of its proper divisors (5564796909).

213322121011 is a wasteful number, since it uses less digits than its factorization.

213322121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11686.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 213322121011 its reverse (110121223312), we get a palindrome (323443344323).

The spelling of 213322121011 in words is "two hundred thirteen billion, three hundred twenty-two million, one hundred twenty-one thousand, eleven".