22002011957 has 2 divisors, whose sum is σ = 22002011958. Its totient is φ = 22002011956.

The previous prime is 22002011903. The next prime is 22002012029. The reversal of 22002011957 is 75911020022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20832303556 + 1169708401 = 144334^2 + 34201^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002011957 - 2⁶ = 22002011893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22002011257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001005978 + 11001005979.

It is an arithmetic number, because the mean of its divisors is an integer number (11001005979).

Almost surely, 2^22002011957 is an apocalyptic number.

It is an amenable number.

22002011957 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002011957 is an equidigital number, since it uses as much as digits as its factorization.

22002011957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 29.

Adding to 22002011957 its reverse (75911020022), we get a palindrome (97913031979).

The spelling of 22002011957 in words is "twenty-two billion, two million, eleven thousand, nine hundred fifty-seven".