221000012202213 has 14 divisors (see below), whose sum is σ = 331348440792614. Its totient is φ = 147333341467656.

The previous prime is 221000012202139. The next prime is 221000012202269. The reversal of 221000012202213 is 312202210000122.

221000012202213 is a `hidden beast` number, since 221 + 0 + 0 + 0 + 0 + 1 + 220 + 221 + 3 = 666.

221000012202213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 210956830068609 + 10043182133604 = 14524353^2 + 3169098^2 .

It is not a de Polignac number, because 221000012202213 - 2¹² = 221000012198117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221000012202293) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 151577511070 + ... + 151577512527.

It is an arithmetic number, because the mean of its divisors is an integer number (23667745770901).

Almost surely, 2^{221000012202213} is an apocalyptic number.

It is an amenable number.

221000012202213 is a deficient number, since it is larger than the sum of its proper divisors (110348428590401).

221000012202213 is an frugal number, since it uses more digits than its factorization.

221000012202213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303155023615 (or 303155023600 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 221000012202213 its reverse (312202210000122), we get a palindrome (533202222202335).

The spelling of 221000012202213 in words is "two hundred twenty-one trillion, twelve million, two hundred two thousand, two hundred thirteen".