22121332211 has 16 divisors (see below), whose sum is σ = 24993951840. Its totient is φ = 19393946880.

The previous prime is 22121332201. The next prime is 22121332213. The reversal of 22121332211 is 11223312122.

It is not a de Polignac number, because 22121332211 - 2¹⁸ = 22121070067 is a prime.

It is a super-2 number, since 2×22121332211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22121332213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232925 + ... + 313841.

It is an arithmetic number, because the mean of its divisors is an integer number (1562121990).

Almost surely, 2^22121332211 is an apocalyptic number.

22121332211 is a deficient number, since it is larger than the sum of its proper divisors (2872619629).

22121332211 is a wasteful number, since it uses less digits than its factorization.

22121332211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81814.

The product of its digits is 288, while the sum is 20.

Adding to 22121332211 its reverse (11223312122), we get a palindrome (33344644333).

The spelling of 22121332211 in words is "twenty-two billion, one hundred twenty-one million, three hundred thirty-two thousand, two hundred eleven".