15230221005 has 64 divisors (see below), whose sum is σ = 25400148480. Its totient is φ = 7786598400.

The previous prime is 15230220979. The next prime is 15230221049. The reversal of 15230221005 is 50012203251.

It is not a de Polignac number, because 15230221005 - 2⁷ = 15230220877 is a prime.

It is a super-2 number, since 2×15230221005² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24845079 + ... + 24845691.

It is an arithmetic number, because the mean of its divisors is an integer number (396877320).

Almost surely, 2^15230221005 is an apocalyptic number.

15230221005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15230221005 is a deficient number, since it is larger than the sum of its proper divisors (10169927475).

15230221005 is a wasteful number, since it uses less digits than its factorization.

15230221005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 15230221005 its reverse (50012203251), we get a palindrome (65242424256).

The spelling of 15230221005 in words is "fifteen billion, two hundred thirty million, two hundred twenty-one thousand, five".