212041057 has 2 divisors, whose sum is σ = 212041058. Its totient is φ = 212041056.

The previous prime is 212041031. The next prime is 212041087. The reversal of 212041057 is 750140212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112021056 + 100020001 = 10584^2 + 10001^2 .

It is a cyclic number.

It is not a de Polignac number, because 212041057 - 2⁷ = 212040929 is a prime.

It is a super-2 number, since 2×212041057² = 89922819707354498, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212041087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106020528 + 106020529.

It is an arithmetic number, because the mean of its divisors is an integer number (106020529).

Almost surely, 2^212041057 is an apocalyptic number.

It is an amenable number.

212041057 is a deficient number, since it is larger than the sum of its proper divisors (1).

212041057 is an equidigital number, since it uses as much as digits as its factorization.

212041057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 212041057 is about 14561.6296134739. The cubic root of 212041057 is about 596.3116857247.

Adding to 212041057 its reverse (750140212), we get a palindrome (962181269).

The spelling of 212041057 in words is "two hundred twelve million, forty-one thousand, fifty-seven".