312022221231211 has 8 divisors (see below), whose sum is σ = 312404285111904. Its totient is φ = 311640162248640.

The previous prime is 312022221231151. The next prime is 312022221231221. The reversal of 312022221231211 is 112132122220213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312022221231211 - 2¹³ = 312022221223019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312022221231221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135610671 + ... + 137892343.

It is an arithmetic number, because the mean of its divisors is an integer number (39050535638988).

Almost surely, 2^{312022221231211} is an apocalyptic number.

312022221231211 is a deficient number, since it is larger than the sum of its proper divisors (382063880693).

312022221231211 is a wasteful number, since it uses less digits than its factorization.

312022221231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449061.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 312022221231211 its reverse (112132122220213), we get a palindrome (424154343451424).

The spelling of 312022221231211 in words is "three hundred twelve trillion, twenty-two billion, two hundred twenty-one million, two hundred thirty-one thousand, two hundred eleven".