1101111220969 has 2 divisors, whose sum is σ = 1101111220970. Its totient is φ = 1101111220968.

The previous prime is 1101111220967. The next prime is 1101111221051. The reversal of 1101111220969 is 9690221111011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1063538438400 + 37572782569 = 1031280^2 + 193837^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101111220969 - 2¹ = 1101111220967 is a prime.

It is a super-2 number, since 2×1101111220969² (a number of 25 digits) contains 22 as substring.

Together with 1101111220967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1101111220961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550555610484 + 550555610485.

It is an arithmetic number, because the mean of its divisors is an integer number (550555610485).

Almost surely, 2^{1101111220969} is an apocalyptic number.

It is an amenable number.

1101111220969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101111220969 is an equidigital number, since it uses as much as digits as its factorization.

1101111220969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 34.

The spelling of 1101111220969 in words is "one trillion, one hundred one billion, one hundred eleven million, two hundred twenty thousand, nine hundred sixty-nine".