213000002112221 has 8 divisors (see below), whose sum is σ = 224210749108320. Its totient is φ = 201789277173072.

The previous prime is 213000002112203. The next prime is 213000002112223. The reversal of 213000002112221 is 122211200000312.

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 213000002112221 - 2²⁶ = 212999935003357 is a prime.

It is a super-2 number, since 2×213000002112221² (a number of 29 digits) contains 22 as substring.

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 213000002112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213000002112223) 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, 16576991 + ... + 26472563.

It is an arithmetic number, because the mean of its divisors is an integer number (28026343638540).

Almost surely, 2^{213000002112221} is an apocalyptic number.

It is an amenable number.

213000002112221 is a deficient number, since it is larger than the sum of its proper divisors (11210746996099).

213000002112221 is a wasteful number, since it uses less digits than its factorization.

213000002112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11028475.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 213000002112221 its reverse (122211200000312), we get a palindrome (335211202112533).

The spelling of 213000002112221 in words is "two hundred thirteen trillion, two million, one hundred twelve thousand, two hundred twenty-one".