2122005515 has 32 divisors (see below), whose sum is σ = 2975280000. Its totient is φ = 1452294144.

The previous prime is 2122005511. The next prime is 2122005517. The reversal of 2122005515 is 5155002212.

It is not a de Polignac number, because 2122005515 - 2² = 2122005511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122005511) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1318031 + ... + 1319639.

It is an arithmetic number, because the mean of its divisors is an integer number (92977500).

Almost surely, 2^2122005515 is an apocalyptic number.

2122005515 is a deficient number, since it is larger than the sum of its proper divisors (853274485).

2122005515 is an equidigital number, since it uses as much as digits as its factorization.

2122005515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404 (or 2390 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 2122005515 is about 46065.2310859286. The cubic root of 2122005515 is about 1285.0366162155.

Adding to 2122005515 its reverse (5155002212), we get a palindrome (7277007727).

The spelling of 2122005515 in words is "two billion, one hundred twenty-two million, five thousand, five hundred fifteen".