1201202201 has 6 divisors (see below), whose sum is σ = 1276017870. Its totient is φ = 1130542976.

The previous prime is 1201202183. The next prime is 1201202207. The reversal of 1201202201 is 1022021021.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 729270025 + 471932176 = 27005^2 + 21724^2 .

It is not a de Polignac number, because 1201202201 - 2¹⁸ = 1200940057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201202207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2077916 + ... + 2078493.

It is an arithmetic number, because the mean of its divisors is an integer number (212669645).

Almost surely, 2^1201202201 is an apocalyptic number.

It is an amenable number.

1201202201 is a deficient number, since it is larger than the sum of its proper divisors (74815669).

1201202201 is an equidigital number, since it uses as much as digits as its factorization.

1201202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156443 (or 4156426 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1201202201 is about 34658.3640843015. The cubic root of 1201202201 is about 1063.0133199625.

Adding to 1201202201 its reverse (1022021021), we get a palindrome (2223223222).

The spelling of 1201202201 in words is "one billion, two hundred one million, two hundred two thousand, two hundred one".