1101201121201 has 4 divisors (see below), whose sum is σ = 1101663618804. Its totient is φ = 1100738623600.

The previous prime is 1101201121159. The next prime is 1101201121219. The reversal of 1101201121201 is 1021211021011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4070567601 + 1097130553600 = 63801^2 + 1047440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101201121201 - 2⁷ = 1101201121073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101201124201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231245230 + ... + 231249991.

It is an arithmetic number, because the mean of its divisors is an integer number (275415904701).

Almost surely, 2^{1101201121201} is an apocalyptic number.

It is an amenable number.

1101201121201 is a deficient number, since it is larger than the sum of its proper divisors (462497603).

1101201121201 is an equidigital number, since it uses as much as digits as its factorization.

1101201121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462497602.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1101201121201 its reverse (1021211021011), we get a palindrome (2122412142212).

It can be divided in two parts, 110120 and 1121201, that added together give a palindrome (1231321).

The spelling of 1101201121201 in words is "one trillion, one hundred one billion, two hundred one million, one hundred twenty-one thousand, two hundred one".