1242221041 has 8 divisors (see below), whose sum is σ = 1260543168. Its totient is φ = 1223922000.

The previous prime is 1242221039. The next prime is 1242221063. The reversal of 1242221041 is 1401222421.

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

It is a cyclic number.

It is not a de Polignac number, because 1242221041 - 2¹ = 1242221039 is a prime.

It is a super-2 number, since 2×1242221041² = 3086226229406247362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242221011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123751 + ... + 133411.

It is an arithmetic number, because the mean of its divisors is an integer number (157567896).

Almost surely, 2^1242221041 is an apocalyptic number.

It is an amenable number.

1242221041 is a deficient number, since it is larger than the sum of its proper divisors (18322127).

1242221041 is an equidigital number, since it uses as much as digits as its factorization.

1242221041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11543.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1242221041 is about 35245.1562771397. The cubic root of 1242221041 is about 1074.9781256771.

Adding to 1242221041 its reverse (1401222421), we get a palindrome (2643443462).

The spelling of 1242221041 in words is "one billion, two hundred forty-two million, two hundred twenty-one thousand, forty-one".