1100000111221 has 8 divisors (see below), whose sum is σ = 1200574584000. Its totient is φ = 999521382240.

The previous prime is 1100000111213. The next prime is 1100000111257. The reversal of 1100000111221 is 1221110000011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1100000111221 - 2³ = 1100000111213 is a prime.

It is a super-2 number, since 2×1100000111221² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1100000111198 and 1100000111207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100000112221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23911921 + ... + 23957878.

It is an arithmetic number, because the mean of its divisors is an integer number (150071823000).

Almost surely, 2^{1100000111221} is an apocalyptic number.

1100000111221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1100000111221 is a deficient number, since it is larger than the sum of its proper divisors (100574472779).

1100000111221 is a wasteful number, since it uses less digits than its factorization.

1100000111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47871899.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1100000111221 its reverse (1221110000011), we get a palindrome (2321110111232).

It can be divided in two parts, 110000011 and 1221, that multiplied together give a palindrome (134310013431).

The spelling of 1100000111221 in words is "one trillion, one hundred billion, one hundred eleven thousand, two hundred twenty-one".