72221505007150 has 48 divisors (see below), whose sum is σ = 143832015277920. Its totient is φ = 26883775001600.

The previous prime is 72221505007109. The next prime is 72221505007189. The reversal of 72221505007150 is 5170050512227.

It is a super-2 number, since 2×72221505007150² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 477264106 + ... + 477415405.

It is an arithmetic number, because the mean of its divisors is an integer number (2996500318290).

Almost surely, 2^{72221505007150} is an apocalyptic number.

72221505007150 is a deficient number, since it is larger than the sum of its proper divisors (71610510270770).

72221505007150 is a wasteful number, since it uses less digits than its factorization.

72221505007150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954679629 (or 954679624 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 37.

Adding to 72221505007150 its reverse (5170050512227), we get a palindrome (77391555519377).

The spelling of 72221505007150 in words is "seventy-two trillion, two hundred twenty-one billion, five hundred five million, seven thousand, one hundred fifty".