1201501211 has 2 divisors, whose sum is σ = 1201501212. Its totient is φ = 1201501210.

The previous prime is 1201501159. The next prime is 1201501219. The reversal of 1201501211 is 1121051021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201501211 - 2¹⁰ = 1201500187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201501219) 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, 600750605 + 600750606.

It is an arithmetic number, because the mean of its divisors is an integer number (600750606).

Almost surely, 2^1201501211 is an apocalyptic number.

1201501211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201501211 is an equidigital number, since it uses as much as digits as its factorization.

1201501211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 1201501211 is about 34662.6774932347. The cubic root of 1201501211 is about 1063.1015163939.

Adding to 1201501211 its reverse (1121051021), we get a palindrome (2322552232).

The spelling of 1201501211 in words is "one billion, two hundred one million, five hundred one thousand, two hundred eleven".