312222320011 has 8 divisors (see below), whose sum is σ = 362873399040. Its totient is φ = 263083213608.

The previous prime is 312222319993. The next prime is 312222320023. The reversal of 312222320011 is 110023222213.

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 312222320011 - 2⁹ = 312222319499 is a prime.

It is a super-2 number, since 2×312222320011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312222320611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377992711 + ... + 377993536.

It is an arithmetic number, because the mean of its divisors is an integer number (45359174880).

Almost surely, 2^312222320011 is an apocalyptic number.

312222320011 is a deficient number, since it is larger than the sum of its proper divisors (50651079029).

312222320011 is an equidigital number, since it uses as much as digits as its factorization.

312222320011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755986313.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 312222320011 its reverse (110023222213), we get a palindrome (422245542224).

The spelling of 312222320011 in words is "three hundred twelve billion, two hundred twenty-two million, three hundred twenty thousand, eleven".