1024221139 has 2 divisors, whose sum is σ = 1024221140. Its totient is φ = 1024221138.

The previous prime is 1024221097. The next prime is 1024221169. The reversal of 1024221139 is 9311224201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1024221139 - 2⁹ = 1024220627 is a prime.

It is not a weakly prime, because it can be changed into another prime (1024221169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512110569 + 512110570.

It is an arithmetic number, because the mean of its divisors is an integer number (512110570).

Almost surely, 2^1024221139 is an apocalyptic number.

1024221139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1024221139 is an equidigital number, since it uses as much as digits as its factorization.

1024221139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1024221139 is about 32003.4551103471. The cubic root of 1024221139 is about 1008.0093913813.

The spelling of 1024221139 in words is "one billion, twenty-four million, two hundred twenty-one thousand, one hundred thirty-nine".