22112021211 has 24 divisors (see below), whose sum is σ = 34858443024. Its totient is φ = 12428297280.

The previous prime is 22112021161. The next prime is 22112021263. The reversal of 22112021211 is 11212021122.

It is not a de Polignac number, because 22112021211 - 2¹⁷ = 22111890139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22112021011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1224000 + ... + 1241933.

It is an arithmetic number, because the mean of its divisors is an integer number (1452435126).

Almost surely, 2^22112021211 is an apocalyptic number.

22112021211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22112021211 is a deficient number, since it is larger than the sum of its proper divisors (12746421813).

22112021211 is a wasteful number, since it uses less digits than its factorization.

22112021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466011 (or 2466004 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22112021211 its reverse (11212021122), we get a palindrome (33324042333).

The spelling of 22112021211 in words is "twenty-two billion, one hundred twelve million, twenty-one thousand, two hundred eleven".