1121012121029 has 2 divisors, whose sum is σ = 1121012121030. Its totient is φ = 1121012121028.

The previous prime is 1121012120989. The next prime is 1121012121077. The reversal of 1121012121029 is 9201212101211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 667137736225 + 453874384804 = 816785^2 + 673702^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121012121029 - 2³² = 1116717153733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121012120995 and 1121012121013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121012021029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560506060514 + 560506060515.

It is an arithmetic number, because the mean of its divisors is an integer number (560506060515).

Almost surely, 2^{1121012121029} is an apocalyptic number.

It is an amenable number.

1121012121029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121012121029 is an equidigital number, since it uses as much as digits as its factorization.

1121012121029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 1121012121029 in words is "one trillion, one hundred twenty-one billion, twelve million, one hundred twenty-one thousand, twenty-nine".