212021012867 has 2 divisors, whose sum is σ = 212021012868. Its totient is φ = 212021012866.

The previous prime is 212021012809. The next prime is 212021012909. The reversal of 212021012867 is 768210120212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212021012867 - 2¹⁴ = 212020996483 is a prime.

It is not a weakly prime, because it can be changed into another prime (212021012167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010506433 + 106010506434.

It is an arithmetic number, because the mean of its divisors is an integer number (106010506434).

Almost surely, 2^212021012867 is an apocalyptic number.

212021012867 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021012867 is an equidigital number, since it uses as much as digits as its factorization.

212021012867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 212021012867 in words is "two hundred twelve billion, twenty-one million, twelve thousand, eight hundred sixty-seven".