221522000151 has 8 divisors (see below), whose sum is σ = 295455942144. Its totient is φ = 147634695800.

The previous prime is 221522000149. The next prime is 221522000173. The reversal of 221522000151 is 151000225122.

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 221522000151 - 2¹ = 221522000149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221522002151) 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, 11648325 + ... + 11667326.

It is an arithmetic number, because the mean of its divisors is an integer number (36931992768).

Almost surely, 2^221522000151 is an apocalyptic number.

221522000151 is a deficient number, since it is larger than the sum of its proper divisors (73933941993).

221522000151 is a wasteful number, since it uses less digits than its factorization.

221522000151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23318821.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 221522000151 its reverse (151000225122), we get a palindrome (372522225273).

The spelling of 221522000151 in words is "two hundred twenty-one billion, five hundred twenty-two million, one hundred fifty-one", and thus it is an aban number.