1201082201 has 4 divisors (see below), whose sum is σ = 1310271504. Its totient is φ = 1091892900.

The previous prime is 1201082191. The next prime is 1201082219. The reversal of 1201082201 is 1022801021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1201082201 - 2¹⁸ = 1200820057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201082201.

It is not an unprimeable number, because it can be changed into a prime (1201082231) 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 in 3 ways as a sum of consecutive naturals, for example, 54594635 + ... + 54594656.

It is an arithmetic number, because the mean of its divisors is an integer number (327567876).

Almost surely, 2^1201082201 is an apocalyptic number.

1201082201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201082201 is a deficient number, since it is larger than the sum of its proper divisors (109189303).

1201082201 is a wasteful number, since it uses less digits than its factorization.

1201082201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109189302.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1201082201 is about 34656.6328572180. The cubic root of 1201082201 is about 1062.9779204696.

Adding to 1201082201 its reverse (1022801021), we get a palindrome (2223883222).

The spelling of 1201082201 in words is "one billion, two hundred one million, eighty-two thousand, two hundred one".