1110012111021 has 64 divisors (see below), whose sum is σ = 1692903628800. Its totient is φ = 640851360000.

The previous prime is 1110012111017. The next prime is 1110012111077. The reversal of 1110012111021 is 1201112100111.

It is not a de Polignac number, because 1110012111021 - 2² = 1110012111017 is a prime.

It is a super-2 number, since 2×1110012111021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1110012110988 and 1110012111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110012110021) 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 63 ways as a sum of consecutive naturals, for example, 17843830 + ... + 17905928.

It is an arithmetic number, because the mean of its divisors is an integer number (26451619200).

Almost surely, 2^{1110012111021} is an apocalyptic number.

1110012111021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1110012111021 is a deficient number, since it is larger than the sum of its proper divisors (582891517779).

1110012111021 is a wasteful number, since it uses less digits than its factorization.

1110012111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62418.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1110012111021 its reverse (1201112100111), we get a palindrome (2311124211132).

It can be divided in two parts, 11100 and 12111021, that added together give a palindrome (12122121).

The spelling of 1110012111021 in words is "one trillion, one hundred ten billion, twelve million, one hundred eleven thousand, twenty-one".