2212131625 has 16 divisors (see below), whose sum is σ = 3011718528. Its totient is φ = 1608822000.

The previous prime is 2212131557. The next prime is 2212131643. The reversal of 2212131625 is 5261312122.

2212131625 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 2212131625 - 2⁹ = 2212131113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2212131625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 803037 + ... + 805786.

It is an arithmetic number, because the mean of its divisors is an integer number (188232408).

Almost surely, 2^2212131625 is an apocalyptic number.

2212131625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2212131625 is a deficient number, since it is larger than the sum of its proper divisors (799586903).

2212131625 is a wasteful number, since it uses less digits than its factorization.

2212131625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608849 (or 1608839 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 2212131625 is about 47033.3033604913. The cubic root of 2212131625 is about 1302.9777156046.

Adding to 2212131625 its reverse (5261312122), we get a palindrome (7473443747).

The spelling of 2212131625 in words is "two billion, two hundred twelve million, one hundred thirty-one thousand, six hundred twenty-five".