2120011015 has 16 divisors (see below), whose sum is σ = 2622067488. Its totient is φ = 1644299136.

The previous prime is 2120011001. The next prime is 2120011079. The reversal of 2120011015 is 5101100212.

It is a cyclic number.

It is not a de Polignac number, because 2120011015 - 2²³ = 2111622407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120010986 and 2120011004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32109 + ... + 72601.

It is an arithmetic number, because the mean of its divisors is an integer number (163879218).

Almost surely, 2^2120011015 is an apocalyptic number.

2120011015 is a deficient number, since it is larger than the sum of its proper divisors (502056473).

2120011015 is a wasteful number, since it uses less digits than its factorization.

2120011015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40818.

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

The square root of 2120011015 is about 46043.5773479863. The cubic root of 2120011015 is about 1284.6338825856.

Adding to 2120011015 its reverse (5101100212), we get a palindrome (7221111227).

The spelling of 2120011015 in words is "two billion, one hundred twenty million, eleven thousand, fifteen".