15221252132332 has 6 divisors (see below), whose sum is σ = 26637191231588. Its totient is φ = 7610626066164.

The previous prime is 15221252132299. The next prime is 15221252132351. The reversal of 15221252132332 is 23323125212251.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1902656516538 + ... + 1902656516545.

Almost surely, 2^{15221252132332} is an apocalyptic number.

It is an amenable number.

15221252132332 is a deficient number, since it is larger than the sum of its proper divisors (11415939099256).

15221252132332 is a wasteful number, since it uses less digits than its factorization.

15221252132332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3805313033087 (or 3805313033085 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

Adding to 15221252132332 its reverse (23323125212251), we get a palindrome (38544377344583).

The spelling of 15221252132332 in words is "fifteen trillion, two hundred twenty-one billion, two hundred fifty-two million, one hundred thirty-two thousand, three hundred thirty-two".