1100021101121 has 4 divisors (see below), whose sum is σ = 1100053143552. Its totient is φ = 1099989058692.

The previous prime is 1100021101093. The next prime is 1100021101163. The reversal of 1100021101121 is 1211011200011.

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 1100021101121 - 2¹⁴ = 1100021084737 is a prime.

It is a super-2 number, since 2×1100021101121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100021181121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15969665 + ... + 16038398.

It is an arithmetic number, because the mean of its divisors is an integer number (275013285888).

Almost surely, 2^{1100021101121} is an apocalyptic number.

It is an amenable number.

1100021101121 is a deficient number, since it is larger than the sum of its proper divisors (32042431).

1100021101121 is an equidigital number, since it uses as much as digits as its factorization.

1100021101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32042430.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1100021101121 its reverse (1211011200011), we get a palindrome (2311032301132).

The spelling of 1100021101121 in words is "one trillion, one hundred billion, twenty-one million, one hundred one thousand, one hundred twenty-one".