22212222122211 has 32 divisors (see below), whose sum is σ = 32379193082880. Its totient is φ = 13432591756800.

The previous prime is 22212222122159. The next prime is 22212222122243. The reversal of 22212222122211 is 11222122221222.

It is a happy number.

It is not a de Polignac number, because 22212222122211 - 2⁶ = 22212222122147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22212222122291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53763835 + ... + 54175403.

It is an arithmetic number, because the mean of its divisors is an integer number (1011849783840).

Almost surely, 2^{22212222122211} is an apocalyptic number.

22212222122211 is a deficient number, since it is larger than the sum of its proper divisors (10166970960669).

22212222122211 is a wasteful number, since it uses less digits than its factorization.

22212222122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415147.

The product of its digits is 1024, while the sum is 24.

Adding to 22212222122211 its reverse (11222122221222), we get a palindrome (33434344343433).

It can be divided in two parts, 222122221222 and 11, that multiplied together give a palindrome (2443344433442).

The spelling of 22212222122211 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred eleven".