1110022221 has 16 divisors (see below), whose sum is σ = 1845232128. Its totient is φ = 576634800.

The previous prime is 1110022213. The next prime is 1110022223. The reversal of 1110022221 is 1222200111.

It is not a de Polignac number, because 1110022221 - 2³ = 1110022213 is a prime.

It is a super-2 number, since 2×1110022221² = 2464298662227545682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1110022197 and 1110022206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110022223) 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, 2402415 + ... + 2402876.

It is an arithmetic number, because the mean of its divisors is an integer number (115327008).

Almost surely, 2^1110022221 is an apocalyptic number.

1110022221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1110022221 is a deficient number, since it is larger than the sum of its proper divisors (735209907).

1110022221 is a wasteful number, since it uses less digits than its factorization.

1110022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805312.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1110022221 is about 33316.9959780290. The cubic root of 1110022221 is about 1035.4057145905.

Adding to 1110022221 its reverse (1222200111), we get a palindrome (2332222332).

The spelling of 1110022221 in words is "one billion, one hundred ten million, twenty-two thousand, two hundred twenty-one".