12022211221957 has 2 divisors, whose sum is σ = 12022211221958. Its totient is φ = 12022211221956.

The previous prime is 12022211221939. The next prime is 12022211221967. The reversal of 12022211221957 is 75912211222021.

12022211221957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11723187079396 + 299024142561 = 3423914^2 + 546831^2 .

It is a cyclic number.

It is not a de Polignac number, because 12022211221957 - 2¹⁹ = 12022210697669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12022211221907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011105610978 + 6011105610979.

It is an arithmetic number, because the mean of its divisors is an integer number (6011105610979).

Almost surely, 2^{12022211221957} is an apocalyptic number.

It is an amenable number.

12022211221957 is a deficient number, since it is larger than the sum of its proper divisors (1).

12022211221957 is an equidigital number, since it uses as much as digits as its factorization.

12022211221957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 37.

Adding to 12022211221957 its reverse (75912211222021), we get a palindrome (87934422443978).

The spelling of 12022211221957 in words is "twelve trillion, twenty-two billion, two hundred eleven million, two hundred twenty-one thousand, nine hundred fifty-seven".