1012100212169 has 2 divisors, whose sum is σ = 1012100212170. Its totient is φ = 1012100212168.

The previous prime is 1012100212147. The next prime is 1012100212261. The reversal of 1012100212169 is 9612120012101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 594189680569 + 417910531600 = 770837^2 + 646460^2 .

It is an emirp because it is prime and its reverse (9612120012101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1012100212169 - 2²⁴ = 1012083434953 is a prime.

It is a super-2 number, since 2×1012100212169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1012100212129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506050106084 + 506050106085.

It is an arithmetic number, because the mean of its divisors is an integer number (506050106085).

Almost surely, 2^{1012100212169} is an apocalyptic number.

It is an amenable number.

1012100212169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012100212169 is an equidigital number, since it uses as much as digits as its factorization.

1012100212169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 1012100212169 in words is "one trillion, twelve billion, one hundred million, two hundred twelve thousand, one hundred sixty-nine".