22121101211 has 8 divisors (see below), whose sum is σ = 24403258800. Its totient is φ = 19884135040.

The previous prime is 22121101187. The next prime is 22121101217. The reversal of 22121101211 is 11210112122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22121101211 - 2⁶ = 22121101147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121101217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11296826 + ... + 11298783.

It is an arithmetic number, because the mean of its divisors is an integer number (3050407350).

Almost surely, 2^22121101211 is an apocalyptic number.

22121101211 is a deficient number, since it is larger than the sum of its proper divisors (2282157589).

22121101211 is a wasteful number, since it uses less digits than its factorization.

22121101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22595709.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22121101211 its reverse (11210112122), we get a palindrome (33331213333).

The spelling of 22121101211 in words is "twenty-two billion, one hundred twenty-one million, one hundred one thousand, two hundred eleven".