1222510013 has 2 divisors, whose sum is σ = 1222510014. Its totient is φ = 1222510012.

The previous prime is 1222509991. The next prime is 1222510039. The reversal of 1222510013 is 3100152221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 681575449 + 540934564 = 26107^2 + 23258^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222510013 - 2¹⁸ = 1222247869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222509973 and 1222510000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222510213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611255006 + 611255007.

It is an arithmetic number, because the mean of its divisors is an integer number (611255007).

Almost surely, 2^1222510013 is an apocalyptic number.

It is an amenable number.

1222510013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222510013 is an equidigital number, since it uses as much as digits as its factorization.

1222510013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1222510013 is about 34964.4106628440. The cubic root of 1222510013 is about 1069.2620214856.

Adding to 1222510013 its reverse (3100152221), we get a palindrome (4322662234).

The spelling of 1222510013 in words is "one billion, two hundred twenty-two million, five hundred ten thousand, thirteen".