22102111220121 has 12 divisors (see below), whose sum is σ = 32065911729072. Its totient is φ = 14669830059576.

The previous prime is 22102111220093. The next prime is 22102111220129. The reversal of 22102111220121 is 12102211120122.

22102111220121 is a `hidden beast` number, since 2 + 210 + 2 + 111 + 220 + 121 = 666.

It is not a de Polignac number, because 22102111220121 - 2²³ = 22102102831513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22102111220094 and 22102111220103.

It is not an unprimeable number, because it can be changed into a prime (22102111220129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5409227331 + ... + 5409231416.

It is an arithmetic number, because the mean of its divisors is an integer number (2672159310756).

Almost surely, 2^{22102111220121} is an apocalyptic number.

It is an amenable number.

22102111220121 is a deficient number, since it is larger than the sum of its proper divisors (9963800508951).

22102111220121 is a wasteful number, since it uses less digits than its factorization.

22102111220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10818458980 (or 10818458977 counting only the distinct ones).

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

Adding to 22102111220121 its reverse (12102211120122), we get a palindrome (34204322340243).

Subtracting from 22102111220121 its reverse (12102211120122), we obtain a palindrome (9999900099999).

The spelling of 22102111220121 in words is "twenty-two trillion, one hundred two billion, one hundred eleven million, two hundred twenty thousand, one hundred twenty-one".