15710221000 has 32 divisors (see below), whose sum is σ = 36761919480. Its totient is φ = 6284088000.

The previous prime is 15710220997. The next prime is 15710221019. The reversal of 15710221000 is 12201751.

15710221000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1547792964 + 14162428036 = 39342^2 + 119006^2 .

It is a super-2 number, since 2×15710221000² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 7854111 + ... + 7856110.

Almost surely, 2^15710221000 is an apocalyptic number.

15710221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15710221000 is an abundant number, since it is smaller than the sum of its proper divisors (21051698480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15710221000 is a wasteful number, since it uses less digits than its factorization.

15710221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15710242 (or 15710228 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 19.

Adding to 15710221000 its reverse (12201751), we get a palindrome (15722422751).

The spelling of 15710221000 in words is "fifteen billion, seven hundred ten million, two hundred twenty-one thousand".