11312021213222 has 8 divisors (see below), whose sum is σ = 17861086126200. Its totient is φ = 5358325837824.

The previous prime is 11312021213221. The next prime is 11312021213321. The reversal of 11312021213222 is 22231212021311.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312021213221) 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, 148842384347 + ... + 148842384422.

It is an arithmetic number, because the mean of its divisors is an integer number (2232635765775).

Almost surely, 2^{11312021213222} is an apocalyptic number.

11312021213222 is a deficient number, since it is larger than the sum of its proper divisors (6549064912978).

11312021213222 is a wasteful number, since it uses less digits than its factorization.

11312021213222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297684768790.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 11312021213222 its reverse (22231212021311), we get a palindrome (33543233234533).

The spelling of 11312021213222 in words is "eleven trillion, three hundred twelve billion, twenty-one million, two hundred thirteen thousand, two hundred twenty-two".