2112131625 has 64 divisors (see below), whose sum is σ = 3652646400. Its totient is φ = 1082592000.

The previous prime is 2112131611. The next prime is 2112131633. The reversal of 2112131625 is 5261312112.

It is a happy number.

It is not a de Polignac number, because 2112131625 - 2⁸ = 2112131369 is a prime.

It is a super-2 number, since 2×2112131625² = 8922200002650281250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112131595 and 2112131604.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3903855 + ... + 3904395.

It is an arithmetic number, because the mean of its divisors is an integer number (57072600).

Almost surely, 2^2112131625 is an apocalyptic number.

2112131625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2112131625 is a deficient number, since it is larger than the sum of its proper divisors (1540514775).

2112131625 is a wasteful number, since it uses less digits than its factorization.

2112131625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 937 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 2112131625 is about 45957.9332107091. The cubic root of 2112131625 is about 1283.0403849615.

Adding to 2112131625 its reverse (5261312112), we get a palindrome (7373443737).

The spelling of 2112131625 in words is "two billion, one hundred twelve million, one hundred thirty-one thousand, six hundred twenty-five".