1001100011021 has 8 divisors (see below), whose sum is σ = 1092178426464. Its totient is φ = 910033149520.

The previous prime is 1001100011011. The next prime is 1001100011063. The reversal of 1001100011021 is 1201100011001.

It is a happy number.

1001100011021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1001100011021 - 2¹⁰ = 1001100009997 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 (1001100011011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2706815 + ... + 3054348.

It is an arithmetic number, because the mean of its divisors is an integer number (136522303308).

Almost surely, 2^{1001100011021} is an apocalyptic number.

1001100011021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1001100011021 is a deficient number, since it is larger than the sum of its proper divisors (91078415443).

1001100011021 is a wasteful number, since it uses less digits than its factorization.

1001100011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5776971.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1001100011021 its reverse (1201100011001), we get a palindrome (2202200022022).

The spelling of 1001100011021 in words is "one trillion, one billion, one hundred million, eleven thousand, twenty-one".