2244111221 has 8 divisors (see below), whose sum is σ = 2449440000. Its totient is φ = 2039002240.

The previous prime is 2244111211. The next prime is 2244111227. The reversal of 2244111221 is 1221114422.

2244111221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2244111221 - 2⁶ = 2244111157 is a prime.

It is a super-2 number, since 2×2244111221² = 10072070344436221682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2244111193 and 2244111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2244111227) 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, 33221 + ... + 74778.

It is an arithmetic number, because the mean of its divisors is an integer number (306180000).

Almost surely, 2^2244111221 is an apocalyptic number.

It is an amenable number.

2244111221 is a deficient number, since it is larger than the sum of its proper divisors (205328779).

2244111221 is a wasteful number, since it uses less digits than its factorization.

2244111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109899.

The product of its digits is 256, while the sum is 20.

The square root of 2244111221 is about 47372.0510533373. The cubic root of 2244111221 is about 1309.2265155934.

Adding to 2244111221 its reverse (1221114422), we get a palindrome (3465225643).

It can be divided in two parts, 22441 and 11221, that multiplied together give a triangular number (251810461 = T₂₂₄₄₁).

The spelling of 2244111221 in words is "two billion, two hundred forty-four million, one hundred eleven thousand, two hundred twenty-one".