311222021212322 has 16 divisors (see below), whose sum is σ = 509273458160544. Its totient is φ = 141464260704000.

The previous prime is 311222021212309. The next prime is 311222021212331. The reversal of 311222021212322 is 223212120222113.

It is a junction number, because it is equal to n+sod(n) for n = 311222021212291 and 311222021212300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3725204 + ... + 25225407.

It is an arithmetic number, because the mean of its divisors is an integer number (31829591135034).

Almost surely, 2^{311222021212322} is an apocalyptic number.

311222021212322 is a deficient number, since it is larger than the sum of its proper divisors (198051436948222).

311222021212322 is a wasteful number, since it uses less digits than its factorization.

311222021212322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29439265.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 311222021212322 its reverse (223212120222113), we get a palindrome (534434141434435).

The spelling of 311222021212322 in words is "three hundred eleven trillion, two hundred twenty-two billion, twenty-one million, two hundred twelve thousand, three hundred twenty-two".