213101221304111 has 32 divisors (see below), whose sum is σ = 244718462158848. Its totient is φ = 181780288784640.

The previous prime is 213101221304099. The next prime is 213101221304159. The reversal of 213101221304111 is 111403122101312.

It is not a de Polignac number, because 213101221304111 - 2³⁸ = 212826343397167 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 (213101221304161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1857632891 + ... + 1857747603.

It is an arithmetic number, because the mean of its divisors is an integer number (7647451942464).

Almost surely, 2^{213101221304111} is an apocalyptic number.

213101221304111 is a deficient number, since it is larger than the sum of its proper divisors (31617240854737).

213101221304111 is a wasteful number, since it uses less digits than its factorization.

213101221304111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116711.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 213101221304111 its reverse (111403122101312), we get a palindrome (324504343405423).

The spelling of 213101221304111 in words is "two hundred thirteen trillion, one hundred one billion, two hundred twenty-one million, three hundred four thousand, one hundred eleven".