1012221113 has 2 divisors, whose sum is σ = 1012221114. Its totient is φ = 1012221112.

The previous prime is 1012221109. The next prime is 1012221121. The reversal of 1012221113 is 3111222101.

1012221113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 976125049 + 36096064 = 31243^2 + 6008^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012221113 - 2² = 1012221109 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012221013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506110556 + 506110557.

It is an arithmetic number, because the mean of its divisors is an integer number (506110557).

Almost surely, 2^1012221113 is an apocalyptic number.

It is an amenable number.

1012221113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012221113 is an equidigital number, since it uses as much as digits as its factorization.

1012221113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1012221113 is about 31815.4225651648. The cubic root of 1012221113 is about 1004.0572210288.

Adding to 1012221113 its reverse (3111222101), we get a palindrome (4123443214).

The spelling of 1012221113 in words is "one billion, twelve million, two hundred twenty-one thousand, one hundred thirteen".