1110012020021 has 16 divisors (see below), whose sum is σ = 1136986478208. Its totient is φ = 1083344020800.

The previous prime is 1110012020017. The next prime is 1110012020027. The reversal of 1110012020021 is 1200202100111.

It is a cyclic number.

It is not a de Polignac number, because 1110012020021 - 2² = 1110012020017 is a prime.

It is a super-3 number, since 3×1110012020021³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1110012019984 and 1110012020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110012020027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5638511 + ... + 5832051.

It is an arithmetic number, because the mean of its divisors is an integer number (71061654888).

Almost surely, 2^{1110012020021} is an apocalyptic number.

It is an amenable number.

1110012020021 is a deficient number, since it is larger than the sum of its proper divisors (26974458187).

1110012020021 is a wasteful number, since it uses less digits than its factorization.

1110012020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194332.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1110012020021 its reverse (1200202100111), we get a palindrome (2310214120132).

The spelling of 1110012020021 in words is "one trillion, one hundred ten billion, twelve million, twenty thousand, twenty-one".