1101112201901 has 2 divisors, whose sum is σ = 1101112201902. Its totient is φ = 1101112201900.

The previous prime is 1101112201867. The next prime is 1101112201961. The reversal of 1101112201901 is 1091022111011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 983867593801 + 117244608100 = 991901^2 + 342410^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101112201901 - 2¹⁴ = 1101112185517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101112201961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550556100950 + 550556100951.

It is an arithmetic number, because the mean of its divisors is an integer number (550556100951).

Almost surely, 2^{1101112201901} is an apocalyptic number.

It is an amenable number.

1101112201901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101112201901 is an equidigital number, since it uses as much as digits as its factorization.

1101112201901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 20.

Adding to 1101112201901 its reverse (1091022111011), we get a palindrome (2192134312912).

The spelling of 1101112201901 in words is "one trillion, one hundred one billion, one hundred twelve million, two hundred one thousand, nine hundred one".