11101020200121 has 16 divisors (see below), whose sum is σ = 15581969360640. Its totient is φ = 7010455093200.

The previous prime is 11101020200111. The next prime is 11101020200143. The reversal of 11101020200121 is 12100202010111.

It is not a de Polignac number, because 11101020200121 - 2¹⁸ = 11101019937977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11101020200097 and 11101020200106.

It is not an unprimeable number, because it can be changed into a prime (11101020200111) 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, 9374655 + ... + 10492196.

It is an arithmetic number, because the mean of its divisors is an integer number (973873085040).

Almost surely, 2^{11101020200121} is an apocalyptic number.

It is an amenable number.

11101020200121 is a deficient number, since it is larger than the sum of its proper divisors (4480949160519).

11101020200121 is a wasteful number, since it uses less digits than its factorization.

11101020200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19876676.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11101020200121 its reverse (12100202010111), we get a palindrome (23201222210232).

The spelling of 11101020200121 in words is "eleven trillion, one hundred one billion, twenty million, two hundred thousand, one hundred twenty-one".