212208137803 has 2 divisors, whose sum is σ = 212208137804. Its totient is φ = 212208137802.

The previous prime is 212208137773. The next prime is 212208137807. The reversal of 212208137803 is 308731802212.

212208137803 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 is a cyclic number.

It is not a de Polignac number, because 212208137803 - 2¹³ = 212208129611 is a prime.

It is not a weakly prime, because it can be changed into another prime (212208137807) 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, 106104068901 + 106104068902.

It is an arithmetic number, because the mean of its divisors is an integer number (106104068902).

Almost surely, 2^212208137803 is an apocalyptic number.

212208137803 is a deficient number, since it is larger than the sum of its proper divisors (1).

212208137803 is an equidigital number, since it uses as much as digits as its factorization.

212208137803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 212208137803 in words is "two hundred twelve billion, two hundred eight million, one hundred thirty-seven thousand, eight hundred three".