213012211223 has 8 divisors (see below), whose sum is σ = 243596714880. Its totient is φ = 182466254520.

The previous prime is 213012211183. The next prime is 213012211259. The reversal of 213012211223 is 322112210312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213012211223 is a prime.

It is a super-2 number, since 2×213012211223² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213012211195 and 213012211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213012216223) 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, 9624893 + ... + 9646998.

It is an arithmetic number, because the mean of its divisors is an integer number (30449589360).

Almost surely, 2^213012211223 is an apocalyptic number.

213012211223 is a deficient number, since it is larger than the sum of its proper divisors (30584503657).

213012211223 is a wasteful number, since it uses less digits than its factorization.

213012211223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19273477.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 213012211223 its reverse (322112210312), we get a palindrome (535124421535).

The spelling of 213012211223 in words is "two hundred thirteen billion, twelve million, two hundred eleven thousand, two hundred twenty-three".