1022221513 has 2 divisors, whose sum is σ = 1022221514. Its totient is φ = 1022221512.

The previous prime is 1022221507. The next prime is 1022221523. The reversal of 1022221513 is 3151222201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 908841609 + 113379904 = 30147^2 + 10648^2 .

It is an emirp because it is prime and its reverse (3151222201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1022221513 - 2²¹ = 1020124361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022221523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511110756 + 511110757.

It is an arithmetic number, because the mean of its divisors is an integer number (511110757).

Almost surely, 2^1022221513 is an apocalyptic number.

It is an amenable number.

1022221513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022221513 is an equidigital number, since it uses as much as digits as its factorization.

1022221513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1022221513 is about 31972.1990641870. The cubic root of 1022221513 is about 1007.3529722828.

Adding to 1022221513 its reverse (3151222201), we get a palindrome (4173443714).

The spelling of 1022221513 in words is "one billion, twenty-two million, two hundred twenty-one thousand, five hundred thirteen".