1042301221 has 24 divisors (see below), whose sum is σ = 1213783704. Its totient is φ = 889090560.

The previous prime is 1042301219. The next prime is 1042301243. The reversal of 1042301221 is 1221032401.

It can be written as a sum of positive squares in 4 ways, for example, as 111197025 + 931104196 = 10545^2 + 30514^2 .

It is not a de Polignac number, because 1042301221 - 2¹ = 1042301219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042301195 and 1042301204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042301291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189705 + ... + 195121.

It is an arithmetic number, because the mean of its divisors is an integer number (50574321).

Almost surely, 2^1042301221 is an apocalyptic number.

It is an amenable number.

1042301221 is a deficient number, since it is larger than the sum of its proper divisors (171482483).

1042301221 is a wasteful number, since it uses less digits than its factorization.

1042301221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5509 (or 5490 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1042301221 is about 32284.6901951993. The cubic root of 1042301221 is about 1013.9061301529.

Adding to 1042301221 its reverse (1221032401), we get a palindrome (2263333622).

The spelling of 1042301221 in words is "one billion, forty-two million, three hundred one thousand, two hundred twenty-one".