1051220117 has 2 divisors, whose sum is σ = 1051220118. Its totient is φ = 1051220116.

The previous prime is 1051220047. The next prime is 1051220123. The reversal of 1051220117 is 7110221501.

It is a happy number.

1051220117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 946546756 + 104673361 = 30766^2 + 10231^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051220117 - 2¹⁰ = 1051219093 is a prime.

It is a super-2 number, since 2×1051220117² = 2210127468770987378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051220167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525610058 + 525610059.

It is an arithmetic number, because the mean of its divisors is an integer number (525610059).

Almost surely, 2^1051220117 is an apocalyptic number.

It is an amenable number.

1051220117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051220117 is an equidigital number, since it uses as much as digits as its factorization.

1051220117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 1051220117 is about 32422.5248399936. The cubic root of 1051220117 is about 1016.7898940961.

Adding to 1051220117 its reverse (7110221501), we get a palindrome (8161441618).

The spelling of 1051220117 in words is "one billion, fifty-one million, two hundred twenty thousand, one hundred seventeen".