1210002121169 has 2 divisors, whose sum is σ = 1210002121170. Its totient is φ = 1210002121168.

The previous prime is 1210002121067. The next prime is 1210002121177. The reversal of 1210002121169 is 9611212000121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 629662881169 + 580339240000 = 793513^2 + 761800^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210002121169 - 2²⁴ = 1209985343953 is a prime.

It is a super-2 number, since 2×1210002121169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1210002129169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605001060584 + 605001060585.

It is an arithmetic number, because the mean of its divisors is an integer number (605001060585).

Almost surely, 2^{1210002121169} is an apocalyptic number.

It is an amenable number.

1210002121169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210002121169 is an equidigital number, since it uses as much as digits as its factorization.

1210002121169 is an evil number, because the sum of its binary digits is even.

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

The spelling of 1210002121169 in words is "one trillion, two hundred ten billion, two million, one hundred twenty-one thousand, one hundred sixty-nine".