22010201121121 has 4 divisors (see below), whose sum is σ = 22010211001492. Its totient is φ = 22010191240752.

The previous prime is 22010201121109. The next prime is 22010201121157. The reversal of 22010201121121 is 12112110201022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 16916892390225 + 5093308730896 = 4113015^2 + 2256836^2 .

It is a cyclic number.

It is not a de Polignac number, because 22010201121121 - 2¹⁹ = 22010200596833 is a prime.

It is a super-2 number, since 2×22010201121121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22010201121095 and 22010201121104.

It is not an unprimeable number, because it can be changed into a prime (22010201121191) 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, 148615 + ... + 6636451.

It is an arithmetic number, because the mean of its divisors is an integer number (5502552750373).

Almost surely, 2^{22010201121121} is an apocalyptic number.

It is an amenable number.

22010201121121 is a deficient number, since it is larger than the sum of its proper divisors (9880371).

22010201121121 is an equidigital number, since it uses as much as digits as its factorization.

22010201121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9880370.

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

Adding to 22010201121121 its reverse (12112110201022), we get a palindrome (34122311322143).

The spelling of 22010201121121 in words is "twenty-two trillion, ten billion, two hundred one million, one hundred twenty-one thousand, one hundred twenty-one".