1025012213 has 2 divisors, whose sum is σ = 1025012214. Its totient is φ = 1025012212.

The previous prime is 1025012207. The next prime is 1025012269. The reversal of 1025012213 is 3122105201.

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., 1020355249 + 4656964 = 31943^2 + 2158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1025012213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1025012191 and 1025012200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025012293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512506106 + 512506107.

It is an arithmetic number, because the mean of its divisors is an integer number (512506107).

Almost surely, 2^1025012213 is an apocalyptic number.

It is an amenable number.

1025012213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025012213 is an equidigital number, since it uses as much as digits as its factorization.

1025012213 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1025012213 is about 32015.8119216115. The cubic root of 1025012213 is about 1008.2688421260.

Adding to 1025012213 its reverse (3122105201), we get a palindrome (4147117414).

The spelling of 1025012213 in words is "one billion, twenty-five million, twelve thousand, two hundred thirteen".