22010112100121 has 4 divisors (see below), whose sum is σ = 22010233618212. Its totient is φ = 22009990582032.

The previous prime is 22010112100049. The next prime is 22010112100147. The reversal of 22010112100121 is 12100121101022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14675304458896 + 7334807641225 = 3830836^2 + 2708285^2 .

It is a cyclic number.

It is not a de Polignac number, because 22010112100121 - 2²² = 22010107905817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22010112100096 and 22010112100105.

It is not an unprimeable number, because it can be changed into a prime (22010112100021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60486950 + ... + 60849743.

It is an arithmetic number, because the mean of its divisors is an integer number (5502558404553).

Almost surely, 2^{22010112100121} is an apocalyptic number.

It is an amenable number.

22010112100121 is a deficient number, since it is larger than the sum of its proper divisors (121518091).

22010112100121 is a wasteful number, since it uses less digits than its factorization.

22010112100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121518090.

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

Adding to 22010112100121 its reverse (12100121101022), we get a palindrome (34110233201143).

Subtracting from 22010112100121 its reverse (12100121101022), we obtain a palindrome (9909990999099).

The spelling of 22010112100121 in words is "twenty-two trillion, ten billion, one hundred twelve million, one hundred thousand, one hundred twenty-one".