10121002015 has 16 divisors (see below), whose sum is σ = 12499175232. Its totient is φ = 7861722624.

The previous prime is 10121002009. The next prime is 10121002027. The reversal of 10121002015 is 51020012101.

10121002015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10121002015 - 2³ = 10121002007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121001986 and 10121002004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33927 + ... + 146263.

It is an arithmetic number, because the mean of its divisors is an integer number (781198452).

Almost surely, 2^10121002015 is an apocalyptic number.

10121002015 is a deficient number, since it is larger than the sum of its proper divisors (2378173217).

10121002015 is a wasteful number, since it uses less digits than its factorization.

10121002015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112866.

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

Adding to 10121002015 its reverse (51020012101), we get a palindrome (61141014116).

The spelling of 10121002015 in words is "ten billion, one hundred twenty-one million, two thousand, fifteen".