120101021201257 has 2 divisors, whose sum is σ = 120101021201258. Its totient is φ = 120101021201256.

The previous prime is 120101021201167. The next prime is 120101021201263. The reversal of 120101021201257 is 752102120101021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72610440422976 + 47490580778281 = 8521176^2 + 6891341^2 .

It is a cyclic number.

It is not a de Polignac number, because 120101021201257 - 2¹¹ = 120101021199209 is a prime.

It is not a weakly prime, because it can be changed into another prime (120101021001257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60050510600628 + 60050510600629.

It is an arithmetic number, because the mean of its divisors is an integer number (60050510600629).

Almost surely, 2^{120101021201257} is an apocalyptic number.

It is an amenable number.

120101021201257 is a deficient number, since it is larger than the sum of its proper divisors (1).

120101021201257 is an equidigital number, since it uses as much as digits as its factorization.

120101021201257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 25.

Adding to 120101021201257 its reverse (752102120101021), we get a palindrome (872203141302278).

The spelling of 120101021201257 in words is "one hundred twenty trillion, one hundred one billion, twenty-one million, two hundred one thousand, two hundred fifty-seven".