1201501201 has 4 divisors (see below), whose sum is σ = 1221198004. Its totient is φ = 1181804400.

The previous prime is 1201501159. The next prime is 1201501211. The reversal of 1201501201 is 1021051021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 368601601 + 832899600 = 19199^2 + 28860^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201501201 - 2¹¹ = 1201499153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201501211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9848310 + ... + 9848431.

It is an arithmetic number, because the mean of its divisors is an integer number (305299501).

Almost surely, 2^1201501201 is an apocalyptic number.

It is an amenable number.

1201501201 is a deficient number, since it is larger than the sum of its proper divisors (19696803).

1201501201 is an equidigital number, since it uses as much as digits as its factorization.

1201501201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19696802.

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

The square root of 1201501201 is about 34662.6773489873. The cubic root of 1201501201 is about 1063.1015134446.

Adding to 1201501201 its reverse (1021051021), we get a palindrome (2222552222).

The spelling of 1201501201 in words is "one billion, two hundred one million, five hundred one thousand, two hundred one".