1110011221 has 8 divisors (see below), whose sum is σ = 1252677600. Its totient is φ = 974304240.

The previous prime is 1110011219. The next prime is 1110011261. The reversal of 1110011221 is 1221100111.

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 1110011221 - 2¹ = 1110011219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1110011198 and 1110011207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110011261) 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, 1739511 + ... + 1740148.

It is an arithmetic number, because the mean of its divisors is an integer number (156584700).

Almost surely, 2^1110011221 is an apocalyptic number.

1110011221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1110011221 is a deficient number, since it is larger than the sum of its proper divisors (142666379).

1110011221 is a wasteful number, since it uses less digits than its factorization.

1110011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479699.

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

The square root of 1110011221 is about 33316.8308967104. The cubic root of 1110011221 is about 1035.4022943886.

Adding to 1110011221 its reverse (1221100111), we get a palindrome (2331111332).

The spelling of 1110011221 in words is "one billion, one hundred ten million, eleven thousand, two hundred twenty-one".