212211342403 has 2 divisors, whose sum is σ = 212211342404. Its totient is φ = 212211342402.

The previous prime is 212211342401. The next prime is 212211342439. The reversal of 212211342403 is 304243112212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212211342403 - 2¹ = 212211342401 is a prime.

Together with 212211342401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (212211342401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105671201 + 106105671202.

It is an arithmetic number, because the mean of its divisors is an integer number (106105671202).

Almost surely, 2^212211342403 is an apocalyptic number.

212211342403 is a deficient number, since it is larger than the sum of its proper divisors (1).

212211342403 is an equidigital number, since it uses as much as digits as its factorization.

212211342403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 212211342403 its reverse (304243112212), we get a palindrome (516454454615).

The spelling of 212211342403 in words is "two hundred twelve billion, two hundred eleven million, three hundred forty-two thousand, four hundred three".