2215312125 has 64 divisors (see below), whose sum is σ = 4178952960. Its totient is φ = 1033171200.

The previous prime is 2215312067. The next prime is 2215312139. The reversal of 2215312125 is 5212135122.

It is not a de Polignac number, because 2215312125 - 2⁸ = 2215311869 is a prime.

It is a super-2 number, since 2×2215312125² = 9815215622344031250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2215312095 and 2215312104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 80667 + ... + 104583.

It is an arithmetic number, because the mean of its divisors is an integer number (65296140).

Almost surely, 2^2215312125 is an apocalyptic number.

2215312125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2215312125 is a deficient number, since it is larger than the sum of its proper divisors (1963640835).

2215312125 is a wasteful number, since it uses less digits than its factorization.

2215312125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23967 (or 23957 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 2215312125 is about 47067.1023646028. The cubic root of 2215312125 is about 1303.6018701663.

Adding to 2215312125 its reverse (5212135122), we get a palindrome (7427447247).

The spelling of 2215312125 in words is "two billion, two hundred fifteen million, three hundred twelve thousand, one hundred twenty-five".