22022020011121 has 4 divisors (see below), whose sum is σ = 23716021550452. Its totient is φ = 20328018471792.

The previous prime is 22022020011077. The next prime is 22022020011139. The reversal of 22022020011121 is 12111002022022.

It is a happy number.

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 2386132073521 + 19635887937600 = 1544711^2 + 4431240^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022020011121 - 2²¹ = 22022017913969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22022020011095 and 22022020011104.

It is not an unprimeable number, because it can be changed into a prime (22022020081121) 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, 847000769646 + ... + 847000769671.

It is an arithmetic number, because the mean of its divisors is an integer number (5929005387613).

Almost surely, 2^{22022020011121} is an apocalyptic number.

It is an amenable number.

22022020011121 is a deficient number, since it is larger than the sum of its proper divisors (1694001539331).

22022020011121 is a wasteful number, since it uses less digits than its factorization.

22022020011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694001539330.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22022020011121 its reverse (12111002022022), we get a palindrome (34133022033143).

The spelling of 22022020011121 in words is "twenty-two trillion, twenty-two billion, twenty million, eleven thousand, one hundred twenty-one".