22211021121 has 16 divisors (see below), whose sum is σ = 29733580800. Its totient is φ = 14747978448.

The previous prime is 22211021089. The next prime is 22211021167. The reversal of 22211021121 is 12112011222.

It is not a de Polignac number, because 22211021121 - 2⁵ = 22211021089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22211021121.

It is not an unprimeable number, because it can be changed into a prime (22211021171) 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, 1316940 + ... + 1333698.

It is an arithmetic number, because the mean of its divisors is an integer number (1858348800).

Almost surely, 2^22211021121 is an apocalyptic number.

It is an amenable number.

22211021121 is a deficient number, since it is larger than the sum of its proper divisors (7522559679).

22211021121 is a wasteful number, since it uses less digits than its factorization.

22211021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18508.

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

Adding to 22211021121 its reverse (12112011222), we get a palindrome (34323032343).

The spelling of 22211021121 in words is "twenty-two billion, two hundred eleven million, twenty-one thousand, one hundred twenty-one".