1212272025 has 12 divisors (see below), whose sum is σ = 2004289872. Its totient is φ = 646545040.

The previous prime is 1212271999. The next prime is 1212272077. The reversal of 1212272025 is 5202722121.

It is not a de Polignac number, because 1212272025 - 2⁶ = 1212271961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212271986 and 1212272004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8081739 + ... + 8081888.

It is an arithmetic number, because the mean of its divisors is an integer number (167024156).

Almost surely, 2^1212272025 is an apocalyptic number.

1212272025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1212272025 is a deficient number, since it is larger than the sum of its proper divisors (792017847).

1212272025 is a wasteful number, since it uses less digits than its factorization.

1212272025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16163640 (or 16163635 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 1212272025 is about 34817.6970088488. The cubic root of 1212272025 is about 1066.2687825365.

Adding to 1212272025 its reverse (5202722121), we get a palindrome (6414994146).

The spelling of 1212272025 in words is "one billion, two hundred twelve million, two hundred seventy-two thousand, twenty-five".