1042221151 has 2 divisors, whose sum is σ = 1042221152. Its totient is φ = 1042221150.

The previous prime is 1042221139. The next prime is 1042221161. The reversal of 1042221151 is 1511222401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1042221151 - 2⁹ = 1042220639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042221161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521110575 + 521110576.

It is an arithmetic number, because the mean of its divisors is an integer number (521110576).

Almost surely, 2^1042221151 is an apocalyptic number.

1042221151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042221151 is an equidigital number, since it uses as much as digits as its factorization.

1042221151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1042221151 is about 32283.4501099247. The cubic root of 1042221151 is about 1013.8801665955.

Adding to 1042221151 its reverse (1511222401), we get a palindrome (2553443552).

The spelling of 1042221151 in words is "one billion, forty-two million, two hundred twenty-one thousand, one hundred fifty-one".