125001211 has 2 divisors, whose sum is σ = 125001212. Its totient is φ = 125001210.

The previous prime is 125001199. The next prime is 125001241. The reversal of 125001211 is 112100521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125001211 - 2¹¹ = 124999163 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 125001191 and 125001200.

It is not a weakly prime, because it can be changed into another prime (125001241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62500605 + 62500606.

It is an arithmetic number, because the mean of its divisors is an integer number (62500606).

Almost surely, 2^125001211 is an apocalyptic number.

125001211 is a deficient number, since it is larger than the sum of its proper divisors (1).

125001211 is an equidigital number, since it uses as much as digits as its factorization.

125001211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 125001211 is about 11180.3940449342. The cubic root of 125001211 is about 500.0016146615.

Adding to 125001211 its reverse (112100521), we get a palindrome (237101732).

The spelling of 125001211 in words is "one hundred twenty-five million, one thousand, two hundred eleven".