312221022025 has 48 divisors (see below), whose sum is σ = 427471532928. Its totient is φ = 226200110400.

The previous prime is 312221022023. The next prime is 312221022073. The reversal of 312221022025 is 520220122213.

It is not a de Polignac number, because 312221022025 - 2¹ = 312221022023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312221021987 and 312221022005.

It is not an unprimeable number, because it can be changed into a prime (312221022023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8733487 + ... + 8769163.

It is an arithmetic number, because the mean of its divisors is an integer number (8905656936).

Almost surely, 2^312221022025 is an apocalyptic number.

It is an amenable number.

312221022025 is a deficient number, since it is larger than the sum of its proper divisors (115250510903).

312221022025 is a wasteful number, since it uses less digits than its factorization.

312221022025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35983 (or 35956 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 312221022025 its reverse (520220122213), we get a palindrome (832441144238).

The spelling of 312221022025 in words is "three hundred twelve billion, two hundred twenty-one million, twenty-two thousand, twenty-five".