1001122615 has 8 divisors (see below), whose sum is σ = 1201642128. Its totient is φ = 800701440.

The previous prime is 1001122613. The next prime is 1001122621. The reversal of 1001122615 is 5162211001.

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

It is not a de Polignac number, because 1001122615 - 2¹ = 1001122613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001122592 and 1001122601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001122613) 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, 64 + ... + 44746.

It is an arithmetic number, because the mean of its divisors is an integer number (150205266).

Almost surely, 2^1001122615 is an apocalyptic number.

1001122615 is a deficient number, since it is larger than the sum of its proper divisors (200519513).

1001122615 is an equidigital number, since it uses as much as digits as its factorization.

1001122615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49169.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1001122615 is about 31640.5217245228. The cubic root of 1001122615 is about 1000.3740650579.

Adding to 1001122615 its reverse (5162211001), we get a palindrome (6163333616).

The spelling of 1001122615 in words is "one billion, one million, one hundred twenty-two thousand, six hundred fifteen".