1212352025 has 24 divisors (see below), whose sum is σ = 1596453624. Its totient is φ = 910131200.

The previous prime is 1212352021. The next prime is 1212352039. The reversal of 1212352025 is 5202532121.

It can be written as a sum of positive squares in 12 ways, for example, as 294019609 + 918332416 = 17147^2 + 30304^2 .

It is not a de Polignac number, because 1212352025 - 2² = 1212352021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212352021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145985 + ... + 154065.

It is an arithmetic number, because the mean of its divisors is an integer number (66518901).

Almost surely, 2^1212352025 is an apocalyptic number.

It is an amenable number.

1212352025 is a deficient number, since it is larger than the sum of its proper divisors (384101599).

1212352025 is a wasteful number, since it uses less digits than its factorization.

1212352025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8461 (or 8456 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1212352025 is about 34818.8458309577. The cubic root of 1212352025 is about 1066.2922370155.

Adding to 1212352025 its reverse (5202532121), we get a palindrome (6414884146).

The spelling of 1212352025 in words is "one billion, two hundred twelve million, three hundred fifty-two thousand, twenty-five".