1110221000021 has 12 divisors (see below), whose sum is σ = 1300772813760. Its totient is φ = 944771821560.

The previous prime is 1110221000017. The next prime is 1110221000023. The reversal of 1110221000021 is 1200001220111.

It is not a de Polignac number, because 1110221000021 - 2² = 1110221000017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1110220999966 and 1110221000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110221000023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81495245 + ... + 81508866.

It is an arithmetic number, because the mean of its divisors is an integer number (108397734480).

Almost surely, 2^{1110221000021} is an apocalyptic number.

It is an amenable number.

1110221000021 is a deficient number, since it is larger than the sum of its proper divisors (190551813739).

1110221000021 is a wasteful number, since it uses less digits than its factorization.

1110221000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163004264 (or 163004257 counting only the distinct ones).

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

Adding to 1110221000021 its reverse (1200001220111), we get a palindrome (2310222220132).

The spelling of 1110221000021 in words is "one trillion, one hundred ten billion, two hundred twenty-one million, twenty-one", and thus it is an aban number.