1042221255 has 8 divisors (see below), whose sum is σ = 1667554032. Its totient is φ = 555851328.

The previous prime is 1042221233. The next prime is 1042221277. The reversal of 1042221255 is 5521222401.

It is an interprime number because it is at equal distance from previous prime (1042221233) and next prime (1042221277).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1042221255 - 2⁵ = 1042221223 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34740694 + ... + 34740723.

It is an arithmetic number, because the mean of its divisors is an integer number (208444254).

Almost surely, 2^1042221255 is an apocalyptic number.

1042221255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1042221255 is a deficient number, since it is larger than the sum of its proper divisors (625332777).

1042221255 is an equidigital number, since it uses as much as digits as its factorization.

1042221255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69481425.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1042221255 is about 32283.4517206571. The cubic root of 1042221255 is about 1013.8802003195.

Adding to 1042221255 its reverse (5521222401), we get a palindrome (6563443656).

The spelling of 1042221255 in words is "one billion, forty-two million, two hundred twenty-one thousand, two hundred fifty-five".