1333212213257 has 2 divisors, whose sum is σ = 1333212213258. Its totient is φ = 1333212213256.

The previous prime is 1333212213253. The next prime is 1333212213353. The reversal of 1333212213257 is 7523122123331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1180984266361 + 152227946896 = 1086731^2 + 390164^2 .

It is an emirp because it is prime and its reverse (7523122123331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1333212213257 - 2² = 1333212213253 is a prime.

It is not a weakly prime, because it can be changed into another prime (1333212213253) 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, 666606106628 + 666606106629.

It is an arithmetic number, because the mean of its divisors is an integer number (666606106629).

Almost surely, 2^{1333212213257} is an apocalyptic number.

It is an amenable number.

1333212213257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1333212213257 is an equidigital number, since it uses as much as digits as its factorization.

1333212213257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 35.

Adding to 1333212213257 its reverse (7523122123331), we get a palindrome (8856334336588).

The spelling of 1333212213257 in words is "one trillion, three hundred thirty-three billion, two hundred twelve million, two hundred thirteen thousand, two hundred fifty-seven".