1110111101021 has 16 divisors (see below), whose sum is σ = 1206766802304. Its totient is φ = 1015065758784.

The previous prime is 1110111101009. The next prime is 1110111101059. The reversal of 1110111101021 is 1201011110111.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1110111101021 is a prime.

It is a super-2 number, since 2×1110111101021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1110111100993 and 1110111101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110111104021) 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 15 ways as a sum of consecutive naturals, for example, 28764680 + ... + 28803246.

It is an arithmetic number, because the mean of its divisors is an integer number (75422925144).

Almost surely, 2^{1110111101021} is an apocalyptic number.

It is an amenable number.

1110111101021 is a deficient number, since it is larger than the sum of its proper divisors (96655701283).

1110111101021 is a wasteful number, since it uses less digits than its factorization.

1110111101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59380.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1110111101021 its reverse (1201011110111), we get a palindrome (2311122211132).

The spelling of 1110111101021 in words is "one trillion, one hundred ten billion, one hundred eleven million, one hundred one thousand, twenty-one".