22122211122211 has 16 divisors (see below), whose sum is σ = 23615257708800. Its totient is φ = 20662055013600.

The previous prime is 22122211122203. The next prime is 22122211122223. The reversal of 22122211122211 is 11222111222122.

It is a cyclic number.

It is not a de Polignac number, because 22122211122211 - 2³ = 22122211122203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122211122281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45856725 + ... + 46336633.

It is an arithmetic number, because the mean of its divisors is an integer number (1475953606800).

Almost surely, 2^{22122211122211} is an apocalyptic number.

22122211122211 is a deficient number, since it is larger than the sum of its proper divisors (1493046586589).

22122211122211 is a wasteful number, since it uses less digits than its factorization.

22122211122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514170.

The product of its digits is 256, while the sum is 22.

Adding to 22122211122211 its reverse (11222111222122), we get a palindrome (33344322344333).

The spelling of 22122211122211 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred eleven million, one hundred twenty-two thousand, two hundred eleven".