2212220021057 has 2 divisors, whose sum is σ = 2212220021058. Its totient is φ = 2212220021056.

The previous prime is 2212220021017. The next prime is 2212220021069. The reversal of 2212220021057 is 7501200222122.

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., 2207842346161 + 4377674896 = 1485881^2 + 66164^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212220021057 - 2⁴⁰ = 1112708393281 is a prime.

It is not a weakly prime, because it can be changed into another prime (2212220021017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106110010528 + 1106110010529.

It is an arithmetic number, because the mean of its divisors is an integer number (1106110010529).

Almost surely, 2^{2212220021057} is an apocalyptic number.

It is an amenable number.

2212220021057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212220021057 is an equidigital number, since it uses as much as digits as its factorization.

2212220021057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 26.

Adding to 2212220021057 its reverse (7501200222122), we get a palindrome (9713420243179).

The spelling of 2212220021057 in words is "two trillion, two hundred twelve billion, two hundred twenty million, twenty-one thousand, fifty-seven".