1111021100101 has 4 divisors (see below), whose sum is σ = 1212023018304. Its totient is φ = 1010019181900.

The previous prime is 1111021100087. The next prime is 1111021100113. The reversal of 1111021100101 is 1010011201111.

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 not a de Polignac number, because 1111021100101 - 2¹⁹ = 1111020575813 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 (1111021107101) 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, 50500959085 + ... + 50500959106.

It is an arithmetic number, because the mean of its divisors is an integer number (303005754576).

Almost surely, 2^{1111021100101} is an apocalyptic number.

1111021100101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111021100101 is a deficient number, since it is larger than the sum of its proper divisors (101001918203).

1111021100101 is a wasteful number, since it uses less digits than its factorization.

1111021100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101001918202.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 1111021100101 its reverse (1010011201111), we get a palindrome (2121032301212).

The spelling of 1111021100101 in words is "one trillion, one hundred eleven billion, twenty-one million, one hundred thousand, one hundred one".