312212452251 has 96 divisors (see below), whose sum is σ = 523265909760. Its totient is φ = 164567821824.

The previous prime is 312212452217. The next prime is 312212452259. The reversal of 312212452251 is 152254212213.

It is not a de Polignac number, because 312212452251 - 2⁶ = 312212452187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312212452259) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 25854351 + ... + 25866423.

It is an arithmetic number, because the mean of its divisors is an integer number (5450686560).

Almost surely, 2^312212452251 is an apocalyptic number.

312212452251 is a deficient number, since it is larger than the sum of its proper divisors (211053457509).

312212452251 is a wasteful number, since it uses less digits than its factorization.

312212452251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12353 (or 12346 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

Adding to 312212452251 its reverse (152254212213), we get a palindrome (464466664464).

The spelling of 312212452251 in words is "three hundred twelve billion, two hundred twelve million, four hundred fifty-two thousand, two hundred fifty-one".