22011122211121 has 16 divisors (see below), whose sum is σ = 23082363755136. Its totient is φ = 20949623899776.

The previous prime is 22011122211083. The next prime is 22011122211137. The reversal of 22011122211121 is 12111222111022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22011122211121 - 2²³ = 22011113822513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22011122214121) 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, 1793341 + ... + 6873013.

It is an arithmetic number, because the mean of its divisors is an integer number (1442647734696).

Almost surely, 2^{22011122211121} is an apocalyptic number.

It is an amenable number.

22011122211121 is a deficient number, since it is larger than the sum of its proper divisors (1071241544015).

22011122211121 is a wasteful number, since it uses less digits than its factorization.

22011122211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080632.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22011122211121 its reverse (12111222111022), we get a palindrome (34122344322143).

The spelling of 22011122211121 in words is "twenty-two trillion, eleven billion, one hundred twenty-two million, two hundred eleven thousand, one hundred twenty-one".