22002020121157 has 2 divisors, whose sum is σ = 22002020121158. Its totient is φ = 22002020121156.

The previous prime is 22002020121049. The next prime is 22002020121173. The reversal of 22002020121157 is 75112102020022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15417669253156 + 6584350868001 = 3926534^2 + 2565999^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002020121157 - 2¹¹ = 22002020119109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22002020121187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001010060578 + 11001010060579.

It is an arithmetic number, because the mean of its divisors is an integer number (11001010060579).

Almost surely, 2^{22002020121157} is an apocalyptic number.

It is an amenable number.

22002020121157 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002020121157 is an equidigital number, since it uses as much as digits as its factorization.

22002020121157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 22002020121157 its reverse (75112102020022), we get a palindrome (97114122141179).

The spelling of 22002020121157 in words is "twenty-two trillion, two billion, twenty million, one hundred twenty-one thousand, one hundred fifty-seven".