1036616221 has 2 divisors, whose sum is σ = 1036616222. Its totient is φ = 1036616220.

The previous prime is 1036616213. The next prime is 1036616237. The reversal of 1036616221 is 1226166301.

1036616221 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., 901800900 + 134815321 = 30030^2 + 11611^2 .

It is an emirp because it is prime and its reverse (1226166301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1036616221 - 2³ = 1036616213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1036616221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1036616921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 518308110 + 518308111.

It is an arithmetic number, because the mean of its divisors is an integer number (518308111).

Almost surely, 2^1036616221 is an apocalyptic number.

It is an amenable number.

1036616221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1036616221 is an equidigital number, since it uses as much as digits as its factorization.

1036616221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1036616221 is about 32196.5249832959. The cubic root of 1036616221 is about 1012.0593934349.

The spelling of 1036616221 in words is "one billion, thirty-six million, six hundred sixteen thousand, two hundred twenty-one".