1130221033861 has 2 divisors, whose sum is σ = 1130221033862. Its totient is φ = 1130221033860.

The previous prime is 1130221033853. The next prime is 1130221033889. The reversal of 1130221033861 is 1683301220311.

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., 955885557636 + 174335476225 = 977694^2 + 417535^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130221033861 - 2³ = 1130221033853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1130221033801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565110516930 + 565110516931.

It is an arithmetic number, because the mean of its divisors is an integer number (565110516931).

Almost surely, 2^{1130221033861} is an apocalyptic number.

It is an amenable number.

1130221033861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130221033861 is an equidigital number, since it uses as much as digits as its factorization.

1130221033861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 1130221033861 in words is "one trillion, one hundred thirty billion, two hundred twenty-one million, thirty-three thousand, eight hundred sixty-one".