1110001023021 has 32 divisors (see below), whose sum is σ = 1649420236800. Its totient is φ = 658206404480.

The previous prime is 1110001022993. The next prime is 1110001023029. The reversal of 1110001023021 is 1203201000111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1110001023021 is a prime.

It is a super-2 number, since 2×1110001023021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1110001022988 and 1110001023006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110001023029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4865650 + ... + 5088668.

It is an arithmetic number, because the mean of its divisors is an integer number (51544382400).

Almost surely, 2^{1110001023021} is an apocalyptic number.

1110001023021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1110001023021 is a deficient number, since it is larger than the sum of its proper divisors (539419213779).

1110001023021 is a wasteful number, since it uses less digits than its factorization.

1110001023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226289.

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

Adding to 1110001023021 its reverse (1203201000111), we get a palindrome (2313202023132).

The spelling of 1110001023021 in words is "one trillion, one hundred ten billion, one million, twenty-three thousand, twenty-one".