151507221217 has 8 divisors (see below), whose sum is σ = 165291072192. Its totient is φ = 137725114800.

The previous prime is 151507221199. The next prime is 151507221221. The reversal of 151507221217 is 712122705151.

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-151507221217 is a prime.

It is a super-2 number, since 2×151507221217² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151507221287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251134 + ... + 605047.

It is an arithmetic number, because the mean of its divisors is an integer number (20661384024).

Almost surely, 2^151507221217 is an apocalyptic number.

It is an amenable number.

151507221217 is a deficient number, since it is larger than the sum of its proper divisors (13783850975).

151507221217 is a wasteful number, since it uses less digits than its factorization.

151507221217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872279.

The product of its (nonzero) digits is 9800, while the sum is 34.

Adding to 151507221217 its reverse (712122705151), we get a palindrome (863629926368).

The spelling of 151507221217 in words is "one hundred fifty-one billion, five hundred seven million, two hundred twenty-one thousand, two hundred seventeen".