11121020220101 has 4 divisors (see below), whose sum is σ = 12132022058304. Its totient is φ = 10110018381900.

The previous prime is 11121020220061. The next prime is 11121020220103. The reversal of 11121020220101 is 10102202012111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121020220101 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 (11121020220103) 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, 505500919085 + ... + 505500919106.

It is an arithmetic number, because the mean of its divisors is an integer number (3033005514576).

Almost surely, 2^{11121020220101} is an apocalyptic number.

11121020220101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11121020220101 is a deficient number, since it is larger than the sum of its proper divisors (1011001838203).

11121020220101 is a wasteful number, since it uses less digits than its factorization.

11121020220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011001838202.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11121020220101 its reverse (10102202012111), we get a palindrome (21223222232212).

The spelling of 11121020220101 in words is "eleven trillion, one hundred twenty-one billion, twenty million, two hundred twenty thousand, one hundred one".