213002213221 has 8 divisors (see below), whose sum is σ = 247421775104. Its totient is φ = 179580319920.

The previous prime is 213002213209. The next prime is 213002213243. The reversal of 213002213221 is 122312200312.

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-213002213221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213002213821) 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, 249416685 + ... + 249417538.

It is an arithmetic number, because the mean of its divisors is an integer number (30927721888).

Almost surely, 2^213002213221 is an apocalyptic number.

It is an amenable number.

213002213221 is a deficient number, since it is larger than the sum of its proper divisors (34419561883).

213002213221 is an equidigital number, since it uses as much as digits as its factorization.

213002213221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498834291.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 213002213221 its reverse (122312200312), we get a palindrome (335314413533).

The spelling of 213002213221 in words is "two hundred thirteen billion, two million, two hundred thirteen thousand, two hundred twenty-one".