1010221187 has 8 divisors (see below), whose sum is σ = 1029689280. Its totient is φ = 990831400.

The previous prime is 1010221171. The next prime is 1010221189. The reversal of 1010221187 is 7811220101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1010221187 - 2⁴ = 1010221171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010221189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6812 + ... + 45462.

It is an arithmetic number, because the mean of its divisors is an integer number (128711160).

Almost surely, 2^1010221187 is an apocalyptic number.

1010221187 is a deficient number, since it is larger than the sum of its proper divisors (19468093).

1010221187 is an equidigital number, since it uses as much as digits as its factorization.

1010221187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39153.

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 1010221187 is about 31783.9768908801. The cubic root of 1010221187 is about 1003.3955197295.

Adding to 1010221187 its reverse (7811220101), we get a palindrome (8821441288).

The spelling of 1010221187 in words is "one billion, ten million, two hundred twenty-one thousand, one hundred eighty-seven".