22445202022121 has 2 divisors, whose sum is σ = 22445202022122. Its totient is φ = 22445202022120.

The previous prime is 22445202022043. The next prime is 22445202022129. The reversal of 22445202022121 is 12122020254422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14335037834896 + 8110164187225 = 3786164^2 + 2847835^2 .

It is a cyclic number.

It is not a de Polignac number, because 22445202022121 - 2³⁰ = 22444128280297 is a prime.

It is not a weakly prime, because it can be changed into another prime (22445202022129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11222601011060 + 11222601011061.

It is an arithmetic number, because the mean of its divisors is an integer number (11222601011061).

Almost surely, 2^{22445202022121} is an apocalyptic number.

It is an amenable number.

22445202022121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22445202022121 is an equidigital number, since it uses as much as digits as its factorization.

22445202022121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 22445202022121 its reverse (12122020254422), we get a palindrome (34567222276543).

The spelling of 22445202022121 in words is "twenty-two trillion, four hundred forty-five billion, two hundred two million, twenty-two thousand, one hundred twenty-one".