1301220205 has 32 divisors (see below), whose sum is σ = 1701216000. Its totient is φ = 951616512.

The previous prime is 1301220203. The next prime is 1301220209. The reversal of 1301220205 is 5020221031.

It is a cyclic number.

It is not a de Polignac number, because 1301220205 - 2¹ = 1301220203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301220203) 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 31 ways as a sum of consecutive naturals, for example, 726451 + ... + 728239.

It is an arithmetic number, because the mean of its divisors is an integer number (53163000).

Almost surely, 2^1301220205 is an apocalyptic number.

It is an amenable number.

1301220205 is a deficient number, since it is larger than the sum of its proper divisors (399995795).

1301220205 is a wasteful number, since it uses less digits than its factorization.

1301220205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1301220205 is about 36072.4299846850. The cubic root of 1301220205 is about 1091.7342437303.

Adding to 1301220205 its reverse (5020221031), we get a palindrome (6321441236).

The spelling of 1301220205 in words is "one billion, three hundred one million, two hundred twenty thousand, two hundred five".