2120004145515 has 16 divisors (see below), whose sum is σ = 3416409561600. Its totient is φ = 1122534568032.

The previous prime is 2120004145513. The next prime is 2120004145547. The reversal of 2120004145515 is 5155414000212.

It is not a de Polignac number, because 2120004145515 - 2¹ = 2120004145513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120004145513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508392195 + ... + 508396364.

It is an arithmetic number, because the mean of its divisors is an integer number (213525597600).

Almost surely, 2^{2120004145515} is an apocalyptic number.

2120004145515 is a deficient number, since it is larger than the sum of its proper divisors (1296405416085).

2120004145515 is a wasteful number, since it uses less digits than its factorization.

2120004145515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016788706.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 2120004145515 its reverse (5155414000212), we get a palindrome (7275418145727).

The spelling of 2120004145515 in words is "two trillion, one hundred twenty billion, four million, one hundred forty-five thousand, five hundred fifteen".