312211222003 has 4 divisors (see below), whose sum is σ = 322977126240. Its totient is φ = 301445317768.

The previous prime is 312211221977. The next prime is 312211222007. The reversal of 312211222003 is 300222112213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300222112213 = 6691 ⋅44869543.

It is a cyclic number.

It is not a de Polignac number, because 312211222003 - 2¹⁷ = 312211090931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312211222007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5382952075 + ... + 5382952132.

It is an arithmetic number, because the mean of its divisors is an integer number (80744281560).

Almost surely, 2^312211222003 is an apocalyptic number.

312211222003 is a deficient number, since it is larger than the sum of its proper divisors (10765904237).

312211222003 is a wasteful number, since it uses less digits than its factorization.

312211222003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10765904236.

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

Adding to 312211222003 its reverse (300222112213), we get a palindrome (612433334216).

The spelling of 312211222003 in words is "three hundred twelve billion, two hundred eleven million, two hundred twenty-two thousand, three".