1019349221 has 16 divisors (see below), whose sum is σ = 1172759040. Its totient is φ = 876247920.

The previous prime is 1019349203. The next prime is 1019349239. The reversal of 1019349221 is 1229439101.

It is an interprime number because it is at equal distance from previous prime (1019349203) and next prime (1019349239).

It is a cyclic number.

It is not a de Polignac number, because 1019349221 - 2²⁶ = 952240357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1019349241) 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 15 ways as a sum of consecutive naturals, for example, 113336 + ... + 121998.

It is an arithmetic number, because the mean of its divisors is an integer number (73297440).

Almost surely, 2^1019349221 is an apocalyptic number.

1019349221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1019349221 is a deficient number, since it is larger than the sum of its proper divisors (153409819).

1019349221 is a wasteful number, since it uses less digits than its factorization.

1019349221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9256.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1019349221 is about 31927.2488792880. The cubic root of 1019349221 is about 1006.4085826682.

The spelling of 1019349221 in words is "one billion, nineteen million, three hundred forty-nine thousand, two hundred twenty-one".