12500101 has 2 divisors, whose sum is σ = 12500102. Its totient is φ = 12500100.

The previous prime is 12500093. The next prime is 12500177. The reversal of 12500101 is 10100521.

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., 6502500 + 5997601 = 2550^2 + 2449^2 .

It is a cyclic number.

It is not a de Polignac number, because 12500101 - 2³ = 12500093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12510101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250050 + 6250051.

It is an arithmetic number, because the mean of its divisors is an integer number (6250051).

Almost surely, 2^12500101 is an apocalyptic number.

It is an amenable number.

12500101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12500101 is an equidigital number, since it uses as much as digits as its factorization.

12500101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 12500101 is about 3535.5481894609. The cubic root of 12500101 is about 232.0800667463.

Adding to 12500101 its reverse (10100521), we get a palindrome (22600622).

The spelling of 12500101 in words is "twelve million, five hundred thousand, one hundred one".