212103222213013 has 2 divisors, whose sum is σ = 212103222213014. Its totient is φ = 212103222213012.

The previous prime is 212103222212983. The next prime is 212103222213017. The reversal of 212103222213013 is 310312222301212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210606764216209 + 1496457996804 = 14512297^2 + 1223298^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212103222213013 is a prime.

It is a super-2 number, since 2×212103222213013² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212103222213017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106051611106506 + 106051611106507.

It is an arithmetic number, because the mean of its divisors is an integer number (106051611106507).

Almost surely, 2^{212103222213013} is an apocalyptic number.

It is an amenable number.

212103222213013 is a deficient number, since it is larger than the sum of its proper divisors (1).

212103222213013 is an equidigital number, since it uses as much as digits as its factorization.

212103222213013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 212103222213013 its reverse (310312222301212), we get a palindrome (522415444514225).

The spelling of 212103222213013 in words is "two hundred twelve trillion, one hundred three billion, two hundred twenty-two million, two hundred thirteen thousand, thirteen".