226213151261221 has 8 divisors (see below), whose sum is σ = 226602278751744. Its totient is φ = 225824036546880.

The previous prime is 226213151261213. The next prime is 226213151261297. The reversal of 226213151261221 is 122162151312622.

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 226213151261221 - 2³ = 226213151261213 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 (226213151261921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32592636 + ... + 38919226.

It is an arithmetic number, because the mean of its divisors is an integer number (28325284843968).

Almost surely, 2^{226213151261221} is an apocalyptic number.

It is an amenable number.

226213151261221 is a deficient number, since it is larger than the sum of its proper divisors (389127490523).

226213151261221 is an equidigital number, since it uses as much as digits as its factorization.

226213151261221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6388091.

The product of its digits is 34560, while the sum is 37.

The spelling of 226213151261221 in words is "two hundred twenty-six trillion, two hundred thirteen billion, one hundred fifty-one million, two hundred sixty-one thousand, two hundred twenty-one".