22101101220121 has 16 divisors (see below), whose sum is σ = 27555791367168. Its totient is φ = 17220905024400.

The previous prime is 22101101220109. The next prime is 22101101220137. The reversal of 22101101220121 is 12102210110122.

It is not a de Polignac number, because 22101101220121 - 2¹¹ = 22101101218073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22101101220095 and 22101101220104.

It is not an unprimeable number, because it can be changed into a prime (22101101220721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4276285 + ... + 7904986.

It is an arithmetic number, because the mean of its divisors is an integer number (1722236960448).

Almost surely, 2^{22101101220121} is an apocalyptic number.

It is an amenable number.

22101101220121 is a deficient number, since it is larger than the sum of its proper divisors (5454690147047).

22101101220121 is a wasteful number, since it uses less digits than its factorization.

22101101220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12204852.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22101101220121 its reverse (12102210110122), we get a palindrome (34203311330243).

The spelling of 22101101220121 in words is "twenty-two trillion, one hundred one billion, one hundred one million, two hundred twenty thousand, one hundred twenty-one".