22312221011 has 4 divisors (see below), whose sum is σ = 22312604952. Its totient is φ = 22311837072.

The previous prime is 22312220993. The next prime is 22312221031. The reversal of 22312221011 is 11012221322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11012221322 = 2 ⋅5506110661.

It is a cyclic number.

It is not a de Polignac number, because 22312221011 - 2¹⁴ = 22312204627 is a prime.

It is a super-3 number, since 3×22312221011³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22312221031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84890 + ... + 227663.

It is an arithmetic number, because the mean of its divisors is an integer number (5578151238).

Almost surely, 2^22312221011 is an apocalyptic number.

22312221011 is a deficient number, since it is larger than the sum of its proper divisors (383941).

22312221011 is an equidigital number, since it uses as much as digits as its factorization.

22312221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383940.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22312221011 its reverse (11012221322), we get a palindrome (33324442333).

The spelling of 22312221011 in words is "twenty-two billion, three hundred twelve million, two hundred twenty-one thousand, eleven".