212266049 has 2 divisors, whose sum is σ = 212266050. Its totient is φ = 212266048.

The previous prime is 212266039. The next prime is 212266123. The reversal of 212266049 is 940662212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207158449 + 5107600 = 14393^2 + 2260^2 .

It is a cyclic number.

It is not a de Polignac number, because 212266049 - 2⁸ = 212265793 is a prime.

It is not a weakly prime, because it can be changed into another prime (212266009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106133024 + 106133025.

It is an arithmetic number, because the mean of its divisors is an integer number (106133025).

Almost surely, 2^212266049 is an apocalyptic number.

It is an amenable number.

212266049 is a deficient number, since it is larger than the sum of its proper divisors (1).

212266049 is an equidigital number, since it uses as much as digits as its factorization.

212266049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 212266049 is about 14569.3530741759. The cubic root of 212266049 is about 596.5225221469.

The spelling of 212266049 in words is "two hundred twelve million, two hundred sixty-six thousand, forty-nine".