213122022133 has 2 divisors, whose sum is σ = 213122022134. Its totient is φ = 213122022132.

The previous prime is 213122022037. The next prime is 213122022167. The reversal of 213122022133 is 331220221312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212638110129 + 483912004 = 461127^2 + 21998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213122022133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213122022173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106561011066 + 106561011067.

It is an arithmetic number, because the mean of its divisors is an integer number (106561011067).

Almost surely, 2^213122022133 is an apocalyptic number.

It is an amenable number.

213122022133 is a deficient number, since it is larger than the sum of its proper divisors (1).

213122022133 is an equidigital number, since it uses as much as digits as its factorization.

213122022133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 213122022133 its reverse (331220221312), we get a palindrome (544342243445).

The spelling of 213122022133 in words is "two hundred thirteen billion, one hundred twenty-two million, twenty-two thousand, one hundred thirty-three".