1100002021169 has 2 divisors, whose sum is σ = 1100002021170. Its totient is φ = 1100002021168.

The previous prime is 1100002021073. The next prime is 1100002021187. The reversal of 1100002021169 is 9611202000011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 983627568400 + 116374452769 = 991780^2 + 341137^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100002021169 - 2³⁶ = 1031282544433 is a prime.

It is a super-2 number, since 2×1100002021169² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1100002021189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550001010584 + 550001010585.

It is an arithmetic number, because the mean of its divisors is an integer number (550001010585).

Almost surely, 2^{1100002021169} is an apocalyptic number.

It is an amenable number.

1100002021169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100002021169 is an equidigital number, since it uses as much as digits as its factorization.

1100002021169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 1100002021169 in words is "one trillion, one hundred billion, two million, twenty-one thousand, one hundred sixty-nine".