1012001215 has 8 divisors (see below), whose sum is σ = 1215059040. Its totient is φ = 809162592.

The previous prime is 1012001201. The next prime is 1012001257. The reversal of 1012001215 is 5121002101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012001215 is a prime.

It is a super-2 number, since 2×1012001215² = 2048292918322952450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012001195 and 1012001204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44464 + ... + 63253.

It is an arithmetic number, because the mean of its divisors is an integer number (151882380).

Almost surely, 2^1012001215 is an apocalyptic number.

1012001215 is a deficient number, since it is larger than the sum of its proper divisors (203057825).

1012001215 is a wasteful number, since it uses less digits than its factorization.

1012001215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109601.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1012001215 is about 31811.9665377669. The cubic root of 1012001215 is about 1003.9845076127.

Adding to 1012001215 its reverse (5121002101), we get a palindrome (6133003316).

It can be divided in two parts, 101200121 and 5, that multiplied together give a palindrome (506000605).

The spelling of 1012001215 in words is "one billion, twelve million, one thousand, two hundred fifteen".