1201122111201 has 16 divisors (see below), whose sum is σ = 1671161296896. Its totient is φ = 765916953296.

The previous prime is 1201122111197. The next prime is 1201122111253. The reversal of 1201122111201 is 1021112211021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1201122111201 - 2² = 1201122111197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201122119201) 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, 3764746 + ... + 4071308.

It is an arithmetic number, because the mean of its divisors is an integer number (104447581056).

Almost surely, 2^{1201122111201} is an apocalyptic number.

It is an amenable number.

1201122111201 is a deficient number, since it is larger than the sum of its proper divisors (470039185695).

1201122111201 is a wasteful number, since it uses less digits than its factorization.

1201122111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363372.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1201122111201 its reverse (1021112211021), we get a palindrome (2222234322222).

The spelling of 1201122111201 in words is "one trillion, two hundred one billion, one hundred twenty-two million, one hundred eleven thousand, two hundred one".