312213122420211 has 24 divisors (see below), whose sum is σ = 461976735153024. Its totient is φ = 203064194183040.

The previous prime is 312213122420153. The next prime is 312213122420393. The reversal of 312213122420211 is 112024221312213.

312213122420211 is a `hidden beast` number, since 3 + 1 + 2 + 2 + 1 + 3 + 1 + 22 + 420 + 211 = 666.

It is not a de Polignac number, because 312213122420211 - 2¹⁵ = 312213122387443 is a prime.

It is a super-2 number, since 2×312213122420211² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312213122420011) 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, 59349790 + ... + 64395836.

It is an arithmetic number, because the mean of its divisors is an integer number (19249030631376).

Almost surely, 2^{312213122420211} is an apocalyptic number.

312213122420211 is a deficient number, since it is larger than the sum of its proper divisors (149763612732813).

312213122420211 is a wasteful number, since it uses less digits than its factorization.

312213122420211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5213771 (or 5213768 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 312213122420211 its reverse (112024221312213), we get a palindrome (424237343732424).

The spelling of 312213122420211 in words is "three hundred twelve trillion, two hundred thirteen billion, one hundred twenty-two million, four hundred twenty thousand, two hundred eleven".