213001222111 has 8 divisors (see below), whose sum is σ = 213208146144. Its totient is φ = 212794401120.

The previous prime is 213001222073. The next prime is 213001222117. The reversal of 213001222111 is 111222100312.

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 213001222111 - 2⁹ = 213001221599 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 (213001222117) 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, 4485585 + ... + 4532821.

It is an arithmetic number, because the mean of its divisors is an integer number (26651018268).

Almost surely, 2^213001222111 is an apocalyptic number.

213001222111 is a deficient number, since it is larger than the sum of its proper divisors (206924033).

213001222111 is a wasteful number, since it uses less digits than its factorization.

213001222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51521.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 213001222111 its reverse (111222100312), we get a palindrome (324223322423).

The spelling of 213001222111 in words is "two hundred thirteen billion, one million, two hundred twenty-two thousand, one hundred eleven".