22011220121211 has 12 divisors (see below), whose sum is σ = 32196440122080. Its totient is φ = 14488398054000.

The previous prime is 22011220121183. The next prime is 22011220121263. The reversal of 22011220121211 is 11212102211022.

22011220121211 is a `hidden beast` number, since 220 + 1 + 1 + 220 + 1 + 212 + 11 = 666.

It is not a de Polignac number, because 22011220121211 - 2⁶ = 22011220121147 is a prime.

It is a super-2 number, since 2×22011220121211² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22011220121291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15479057040 + ... + 15479058461.

It is an arithmetic number, because the mean of its divisors is an integer number (2683036676840).

Almost surely, 2^{22011220121211} is an apocalyptic number.

22011220121211 is a deficient number, since it is larger than the sum of its proper divisors (10185220000869).

22011220121211 is a wasteful number, since it uses less digits than its factorization.

22011220121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30958115586 (or 30958115583 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22011220121211 its reverse (11212102211022), we get a palindrome (33223322332233).

The spelling of 22011220121211 in words is "twenty-two trillion, eleven billion, two hundred twenty million, one hundred twenty-one thousand, two hundred eleven".