2122012815 has 64 divisors (see below), whose sum is σ = 3875343360. Its totient is φ = 982886400.

The previous prime is 2122012813. The next prime is 2122012829. The reversal of 2122012815 is 5182102212.

It is not a de Polignac number, because 2122012815 - 2¹ = 2122012813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122012813) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 557559 + ... + 561351.

It is an arithmetic number, because the mean of its divisors is an integer number (60552240).

Almost surely, 2^2122012815 is an apocalyptic number.

2122012815 is a deficient number, since it is larger than the sum of its proper divisors (1753330545).

2122012815 is a wasteful number, since it uses less digits than its factorization.

2122012815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3984.

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 2122012815 is about 46065.3103213253. The cubic root of 2122012815 is about 1285.0380897832.

The spelling of 2122012815 in words is "two billion, one hundred twenty-two million, twelve thousand, eight hundred fifteen".