1211104412269 has 2 divisors, whose sum is σ = 1211104412270. Its totient is φ = 1211104412268.

The previous prime is 1211104412263. The next prime is 1211104412279. The reversal of 1211104412269 is 9622144011121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1166749946244 + 44354466025 = 1080162^2 + 210605^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211104412269 - 2¹³ = 1211104404077 is a prime.

It is a super-2 number, since 2×1211104412269² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211104412263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605552206134 + 605552206135.

It is an arithmetic number, because the mean of its divisors is an integer number (605552206135).

Almost surely, 2^{1211104412269} is an apocalyptic number.

It is an amenable number.

1211104412269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211104412269 is an equidigital number, since it uses as much as digits as its factorization.

1211104412269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 1211104412269 in words is "one trillion, two hundred eleven billion, one hundred four million, four hundred twelve thousand, two hundred sixty-nine".