1020212121167 has 2 divisors, whose sum is σ = 1020212121168. Its totient is φ = 1020212121166.

The previous prime is 1020212121151. The next prime is 1020212121221. The reversal of 1020212121167 is 7611212120201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020212121167 - 2⁴ = 1020212121151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020212121667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510106060583 + 510106060584.

It is an arithmetic number, because the mean of its divisors is an integer number (510106060584).

Almost surely, 2^{1020212121167} is an apocalyptic number.

1020212121167 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020212121167 is an equidigital number, since it uses as much as digits as its factorization.

1020212121167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 26.

Adding to 1020212121167 its reverse (7611212120201), we get a palindrome (8631424241368).

The spelling of 1020212121167 in words is "one trillion, twenty billion, two hundred twelve million, one hundred twenty-one thousand, one hundred sixty-seven".