1220041139 has 2 divisors, whose sum is σ = 1220041140. Its totient is φ = 1220041138.

The previous prime is 1220041133. The next prime is 1220041157. The reversal of 1220041139 is 9311400221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220041139 - 2⁸ = 1220040883 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220041133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610020569 + 610020570.

It is an arithmetic number, because the mean of its divisors is an integer number (610020570).

Almost surely, 2^1220041139 is an apocalyptic number.

1220041139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220041139 is an equidigital number, since it uses as much as digits as its factorization.

1220041139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1220041139 is about 34929.0872912534. The cubic root of 1220041139 is about 1068.5417404632.

The spelling of 1220041139 in words is "one billion, two hundred twenty million, forty-one thousand, one hundred thirty-nine".