1201220200201 has 16 divisors (see below), whose sum is σ = 1379710560384. Its totient is φ = 1024462468224.

The previous prime is 1201220200157. The next prime is 1201220200231. The reversal of 1201220200201 is 1020020221021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1201220200201 - 2²¹ = 1201218103049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201220200231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893301 + ... + 1788973.

It is an arithmetic number, because the mean of its divisors is an integer number (86231910024).

Almost surely, 2^{1201220200201} is an apocalyptic number.

It is an amenable number.

1201220200201 is a deficient number, since it is larger than the sum of its proper divisors (178490360183).

1201220200201 is an equidigital number, since it uses as much as digits as its factorization.

1201220200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896640.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1201220200201 its reverse (1020020221021), we get a palindrome (2221240421222).

The spelling of 1201220200201 in words is "one trillion, two hundred one billion, two hundred twenty million, two hundred thousand, two hundred one".