212021084827 has 2 divisors, whose sum is σ = 212021084828. Its totient is φ = 212021084826.

The previous prime is 212021084777. The next prime is 212021084881. The reversal of 212021084827 is 728480120212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212021084827 - 2²³ = 212012696219 is a prime.

It is a super-2 number, since 2×212021084827² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212021684827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010542413 + 106010542414.

It is an arithmetic number, because the mean of its divisors is an integer number (106010542414).

Almost surely, 2^212021084827 is an apocalyptic number.

212021084827 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021084827 is an equidigital number, since it uses as much as digits as its factorization.

212021084827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28672, while the sum is 37.

The spelling of 212021084827 in words is "two hundred twelve billion, twenty-one million, eighty-four thousand, eight hundred twenty-seven".