212222503 has 2 divisors, whose sum is σ = 212222504. Its totient is φ = 212222502.

The previous prime is 212222473. The next prime is 212222557. The reversal of 212222503 is 305222212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212222503 - 2⁵ = 212222471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212222573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111251 + 106111252.

It is an arithmetic number, because the mean of its divisors is an integer number (106111252).

Almost surely, 2^212222503 is an apocalyptic number.

212222503 is a deficient number, since it is larger than the sum of its proper divisors (1).

212222503 is an equidigital number, since it uses as much as digits as its factorization.

212222503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 212222503 is about 14567.8585591706. The cubic root of 212222503 is about 596.4817275146.

Adding to 212222503 its reverse (305222212), we get a palindrome (517444715).

The spelling of 212222503 in words is "two hundred twelve million, two hundred twenty-two thousand, five hundred three".