1121201110101 has 16 divisors (see below), whose sum is σ = 1517164881408. Its totient is φ = 736368687600.

The previous prime is 1121201110091. The next prime is 1121201110121. The reversal of 1121201110101 is 1010111021211.

It is not a de Polignac number, because 1121201110101 - 2⁵ = 1121201110069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121201110121) 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, 1763691 + ... + 2313656.

It is an arithmetic number, because the mean of its divisors is an integer number (94822805088).

Almost surely, 2^{1121201110101} is an apocalyptic number.

It is an amenable number.

1121201110101 is a deficient number, since it is larger than the sum of its proper divisors (395963771307).

1121201110101 is a wasteful number, since it uses less digits than its factorization.

1121201110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078712.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1121201110101 its reverse (1010111021211), we get a palindrome (2131312131312).

It can be divided in two parts, 112120 and 1110101, that added together give a palindrome (1222221).

The spelling of 1121201110101 in words is "one trillion, one hundred twenty-one billion, two hundred one million, one hundred ten thousand, one hundred one".