222122111022011 has 4 divisors (see below), whose sum is σ = 222727348382112. Its totient is φ = 221516873661912.

The previous prime is 222122111021903. The next prime is 222122111022013. The reversal of 222122111022011 is 110220111221222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222122111022011 - 2¹⁸ = 222122110759867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222122111022013) 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 3 ways as a sum of consecutive naturals, for example, 302618679500 + ... + 302618680233.

It is an arithmetic number, because the mean of its divisors is an integer number (55681837095528).

Almost surely, 2^{222122111022011} is an apocalyptic number.

222122111022011 is a deficient number, since it is larger than the sum of its proper divisors (605237360101).

222122111022011 is an equidigital number, since it uses as much as digits as its factorization.

222122111022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605237360100.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222122111022011 its reverse (110220111221222), we get a palindrome (332342222243233).

The spelling of 222122111022011 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, one hundred eleven million, twenty-two thousand, eleven".