1121021011469 has 2 divisors, whose sum is σ = 1121021011470. Its totient is φ = 1121021011468.

The previous prime is 1121021011423. The next prime is 1121021011507. The reversal of 1121021011469 is 9641101201211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 988906935844 + 132114075625 = 994438^2 + 363475^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121021011469 - 2⁸ = 1121021011213 is a prime.

It is a super-2 number, since 2×1121021011469² (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 (1121021011969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560510505734 + 560510505735.

It is an arithmetic number, because the mean of its divisors is an integer number (560510505735).

Almost surely, 2^{1121021011469} is an apocalyptic number.

It is an amenable number.

1121021011469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121021011469 is an equidigital number, since it uses as much as digits as its factorization.

1121021011469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 1121021011469 in words is "one trillion, one hundred twenty-one billion, twenty-one million, eleven thousand, four hundred sixty-nine".