2122505515 has 16 divisors (see below), whose sum is σ = 2744604576. Its totient is φ = 1566432000.

The previous prime is 2122505513. The next prime is 2122505537. The reversal of 2122505515 is 5155052212.

It is not a de Polignac number, because 2122505515 - 2¹ = 2122505513 is a prime.

It is a super-2 number, since 2×2122505515² = 9010059322410830450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122505513) 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, 108000 + ... + 126130.

It is an arithmetic number, because the mean of its divisors is an integer number (171537786).

Almost surely, 2^2122505515 is an apocalyptic number.

2122505515 is a deficient number, since it is larger than the sum of its proper divisors (622099061).

2122505515 is a wasteful number, since it uses less digits than its factorization.

2122505515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19950.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 2122505515 is about 46070.6578529111. The cubic root of 2122505515 is about 1285.1375377016.

Adding to 2122505515 its reverse (5155052212), we get a palindrome (7277557727).

It can be divided in two parts, 21 and 22505515, that added together give a square (22505536 = 4744²).

The spelling of 2122505515 in words is "two billion, one hundred twenty-two million, five hundred five thousand, five hundred fifteen".