1016722209 has 8 divisors (see below), whose sum is σ = 1356024960. Its totient is φ = 677617136.

The previous prime is 1016722193. The next prime is 1016722271. The reversal of 1016722209 is 9022276101.

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 1016722209 - 2⁴ = 1016722193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1016722409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36969 + ... + 58310.

It is an arithmetic number, because the mean of its divisors is an integer number (169503120).

Almost surely, 2^1016722209 is an apocalyptic number.

It is an amenable number.

1016722209 is a deficient number, since it is larger than the sum of its proper divisors (339302751).

1016722209 is an equidigital number, since it uses as much as digits as its factorization.

1016722209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98839.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1016722209 is about 31886.0817442344. The cubic root of 1016722209 is about 1005.5432848814.

The spelling of 1016722209 in words is "one billion, sixteen million, seven hundred twenty-two thousand, two hundred nine".