1225021052257 has 2 divisors, whose sum is σ = 1225021052258. Its totient is φ = 1225021052256.

The previous prime is 1225021052173. The next prime is 1225021052341. The reversal of 1225021052257 is 7522501205221.

It is a balanced prime because it is at equal distance from previous prime (1225021052173) and next prime (1225021052341).

It can be written as a sum of positive squares in only one way, i.e., 830943456721 + 394077595536 = 911561^2 + 627756^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225021052257 - 2¹⁵ = 1225021019489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1225021052357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612510526128 + 612510526129.

It is an arithmetic number, because the mean of its divisors is an integer number (612510526129).

Almost surely, 2^{1225021052257} is an apocalyptic number.

It is an amenable number.

1225021052257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225021052257 is an equidigital number, since it uses as much as digits as its factorization.

1225021052257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28000, while the sum is 34.

Adding to 1225021052257 its reverse (7522501205221), we get a palindrome (8747522257478).

The spelling of 1225021052257 in words is "one trillion, two hundred twenty-five billion, twenty-one million, fifty-two thousand, two hundred fifty-seven".