1111211411969 has 2 divisors, whose sum is σ = 1111211411970. Its totient is φ = 1111211411968.

The previous prime is 1111211411963. The next prime is 1111211412007. The reversal of 1111211411969 is 9691141121111.

It is a happy number.

It is an a-pointer prime, because the next prime (1111211412007) can be obtained adding 1111211411969 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 882810576400 + 228400835569 = 939580^2 + 477913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111211411969 is a prime.

It is a super-2 number, since 2×1111211411969² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1111211411963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555605705984 + 555605705985.

It is an arithmetic number, because the mean of its divisors is an integer number (555605705985).

Almost surely, 2^{1111211411969} is an apocalyptic number.

It is an amenable number.

1111211411969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111211411969 is an equidigital number, since it uses as much as digits as its factorization.

1111211411969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 38.

The spelling of 1111211411969 in words is "one trillion, one hundred eleven billion, two hundred eleven million, four hundred eleven thousand, nine hundred sixty-nine".