1110100212221 has 48 divisors (see below), whose sum is σ = 1577551587840. Its totient is φ = 756448580160.

The previous prime is 1110100212217. The next prime is 1110100212289. The reversal of 1110100212221 is 1222120010111.

It is not a de Polignac number, because 1110100212221 - 2² = 1110100212217 is a prime.

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 = 1110100212196 and 1110100212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110100212521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1997675 + ... + 2492168.

It is an arithmetic number, because the mean of its divisors is an integer number (32865658080).

Almost surely, 2^{1110100212221} is an apocalyptic number.

1110100212221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1110100212221 is a deficient number, since it is larger than the sum of its proper divisors (467451375619).

1110100212221 is a wasteful number, since it uses less digits than its factorization.

1110100212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489906 (or 4489893 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1110100212221 its reverse (1222120010111), we get a palindrome (2332220222332).

The spelling of 1110100212221 in words is "one trillion, one hundred ten billion, one hundred million, two hundred twelve thousand, two hundred twenty-one".