22212222122111 has 8 divisors (see below), whose sum is σ = 25387376799264. Its totient is φ = 19037562467040.

The previous prime is 22212222122087. The next prime is 22212222122119. The reversal of 22212222122111 is 11122122221222.

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

It is a cyclic number.

It is not a de Polignac number, because 22212222122111 - 2³⁰ = 22211148380287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212222122119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123659360 + ... + 123838853.

It is an arithmetic number, because the mean of its divisors is an integer number (3173422099908).

Almost surely, 2^{22212222122111} is an apocalyptic number.

22212222122111 is a deficient number, since it is larger than the sum of its proper divisors (3175154677153).

22212222122111 is a wasteful number, since it uses less digits than its factorization.

22212222122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247511041.

The product of its digits is 512, while the sum is 23.

Adding to 22212222122111 its reverse (11122122221222), we get a palindrome (33334344343333).

The spelling of 22212222122111 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred eleven".