1040223221 has 2 divisors, whose sum is σ = 1040223222. Its totient is φ = 1040223220.

The previous prime is 1040223211. The next prime is 1040223293. The reversal of 1040223221 is 1223220401.

1040223221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 551592196 + 488631025 = 23486^2 + 22105^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040223221 - 2⁶ = 1040223157 is a prime.

It is a super-2 number, since 2×1040223221² = 2164128699015229682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1040223221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040223211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520111610 + 520111611.

It is an arithmetic number, because the mean of its divisors is an integer number (520111611).

Almost surely, 2^1040223221 is an apocalyptic number.

It is an amenable number.

1040223221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040223221 is an equidigital number, since it uses as much as digits as its factorization.

1040223221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1040223221 is about 32252.4917021926. The cubic root of 1040223221 is about 1013.2318853191.

Adding to 1040223221 its reverse (1223220401), we get a palindrome (2263443622).

The spelling of 1040223221 in words is "one billion, forty million, two hundred twenty-three thousand, two hundred twenty-one".