212010221222057 has 2 divisors, whose sum is σ = 212010221222058. Its totient is φ = 212010221222056.

The previous prime is 212010221221991. The next prime is 212010221222113. The reversal of 212010221222057 is 750222122010212.

212010221222057 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 can be written as a sum of positive squares in only one way, i.e., 208555738048681 + 3454483173376 = 14441459^2 + 1858624^2 .

It is a cyclic number.

It is not a de Polignac number, because 212010221222057 - 2¹⁰ = 212010221221033 is a prime.

It is a super-2 number, since 2×212010221222057² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212010221222257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106005110611028 + 106005110611029.

It is an arithmetic number, because the mean of its divisors is an integer number (106005110611029).

Almost surely, 2^{212010221222057} is an apocalyptic number.

It is an amenable number.

212010221222057 is a deficient number, since it is larger than the sum of its proper divisors (1).

212010221222057 is an equidigital number, since it uses as much as digits as its factorization.

212010221222057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 29.

Adding to 212010221222057 its reverse (750222122010212), we get a palindrome (962232343232269).

The spelling of 212010221222057 in words is "two hundred twelve trillion, ten billion, two hundred twenty-one million, two hundred twenty-two thousand, fifty-seven".