11101220120101 has 4 divisors (see below), whose sum is σ = 11106236489292. Its totient is φ = 11096203750912.

The previous prime is 11101220120099. The next prime is 11101220120117. The reversal of 11101220120101 is 10102102210111.

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 6953378729476 + 4147841390625 = 2636926^2 + 2036625^2 .

It is a cyclic number.

It is not a de Polignac number, because 11101220120101 - 2¹ = 11101220120099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101220120201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2508181276 + ... + 2508185701.

It is an arithmetic number, because the mean of its divisors is an integer number (2776559122323).

Almost surely, 2^{11101220120101} is an apocalyptic number.

It is an amenable number.

11101220120101 is a deficient number, since it is larger than the sum of its proper divisors (5016369191).

11101220120101 is an equidigital number, since it uses as much as digits as its factorization.

11101220120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016369190.

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

Adding to 11101220120101 its reverse (10102102210111), we get a palindrome (21203322330212).

The spelling of 11101220120101 in words is "eleven trillion, one hundred one billion, two hundred twenty million, one hundred twenty thousand, one hundred one".