212021012167 has 2 divisors, whose sum is σ = 212021012168. Its totient is φ = 212021012166.

The previous prime is 212021012153. The next prime is 212021012183. The reversal of 212021012167 is 761210120212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212021012167 - 2¹⁵ = 212020979399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021012867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010506083 + 106010506084.

It is an arithmetic number, because the mean of its divisors is an integer number (106010506084).

Almost surely, 2^212021012167 is an apocalyptic number.

212021012167 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021012167 is an equidigital number, since it uses as much as digits as its factorization.

212021012167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 212021012167 its reverse (761210120212), we get a palindrome (973231132379).

The spelling of 212021012167 in words is "two hundred twelve billion, twenty-one million, twelve thousand, one hundred sixty-seven".