1201221112201 has 8 divisors (see below), whose sum is σ = 1317997733184. Its totient is φ = 1085706941520.

The previous prime is 1201221112199. The next prime is 1201221112237. The reversal of 1201221112201 is 1022111221021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201221112201 - 2¹ = 1201221112199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201221112001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315610581 + ... + 315614386.

It is an arithmetic number, because the mean of its divisors is an integer number (164749716648).

Almost surely, 2^{1201221112201} is an apocalyptic number.

1201221112201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201221112201 is a deficient number, since it is larger than the sum of its proper divisors (116776620983).

1201221112201 is a wasteful number, since it uses less digits than its factorization.

1201221112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631225151.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1201221112201 its reverse (1022111221021), we get a palindrome (2223332333222).

The spelling of 1201221112201 in words is "one trillion, two hundred one billion, two hundred twenty-one million, one hundred twelve thousand, two hundred one".