22211121122211 has 16 divisors (see below), whose sum is σ = 35317062157824. Its totient is φ = 12140240116224.

The previous prime is 22211121122209. The next prime is 22211121122297. The reversal of 22211121122211 is 11222112111222.

It is not a de Polignac number, because 22211121122211 - 2¹ = 22211121122209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (22211121122011) 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, 22992878526 + ... + 22992879491.

It is an arithmetic number, because the mean of its divisors is an integer number (2207316384864).

Almost surely, 2^{22211121122211} is an apocalyptic number.

22211121122211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22211121122211 is a deficient number, since it is larger than the sum of its proper divisors (13105941035613).

22211121122211 is a wasteful number, since it uses less digits than its factorization.

22211121122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45985758050.

The product of its digits is 128, while the sum is 21.

Adding to 22211121122211 its reverse (11222112111222), we get a palindrome (33433233233433).

The spelling of 22211121122211 in words is "twenty-two trillion, two hundred eleven billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred eleven".