22212111031321 has 16 divisors (see below), whose sum is σ = 23019242855040. Its totient is φ = 21407730140160.

The previous prime is 22212111031277. The next prime is 22212111031387. The reversal of 22212111031321 is 12313011121222.

It is a happy number.

It is not a de Polignac number, because 22212111031321 - 2¹⁷ = 22212110900249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22212111031292 and 22212111031301.

It is not an unprimeable number, because it can be changed into a prime (22212111031921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402752470 + ... + 402807616.

It is an arithmetic number, because the mean of its divisors is an integer number (1438702678440).

Almost surely, 2^{22212111031321} is an apocalyptic number.

It is an amenable number.

22212111031321 is a deficient number, since it is larger than the sum of its proper divisors (807131823719).

22212111031321 is a wasteful number, since it uses less digits than its factorization.

22212111031321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79824.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 22212111031321 its reverse (12313011121222), we get a palindrome (34525122152543).

The spelling of 22212111031321 in words is "twenty-two trillion, two hundred twelve billion, one hundred eleven million, thirty-one thousand, three hundred twenty-one".