3215122505 has 32 divisors (see below), whose sum is σ = 4694976000. Its totient is φ = 2108774976.

The previous prime is 3215122489. The next prime is 3215122549. The reversal of 3215122505 is 5052215123.

3215122505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3215122505 - 2⁴ = 3215122489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1310 + ... + 80199.

It is an arithmetic number, because the mean of its divisors is an integer number (146718000).

Almost surely, 2^3215122505 is an apocalyptic number.

3215122505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3215122505 is a deficient number, since it is larger than the sum of its proper divisors (1479853495).

3215122505 is an equidigital number, since it uses as much as digits as its factorization.

3215122505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81558 (or 81544 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 3215122505 is about 56702.0502715731. The cubic root of 3215122505 is about 1475.9302766998.

Adding to 3215122505 its reverse (5052215123), we get a palindrome (8267337628).

The spelling of 3215122505 in words is "three billion, two hundred fifteen million, one hundred twenty-two thousand, five hundred five".