2221404043 has 8 divisors (see below), whose sum is σ = 2226988800. Its totient is φ = 2215828008.

The previous prime is 2221404041. The next prime is 2221404049. The reversal of 2221404043 is 3404041222.

It is a happy number.

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 2221404043 - 2¹ = 2221404041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221404041) 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, 902148 + ... + 904606.

It is an arithmetic number, because the mean of its divisors is an integer number (278373600).

Almost surely, 2^2221404043 is an apocalyptic number.

2221404043 is a deficient number, since it is larger than the sum of its proper divisors (5584757).

2221404043 is an equidigital number, since it uses as much as digits as its factorization.

2221404043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2221404043 is about 47131.7731790350. The cubic root of 2221404043 is about 1304.7957075624.

Adding to 2221404043 its reverse (3404041222), we get a palindrome (5625445265).

The spelling of 2221404043 in words is "two billion, two hundred twenty-one million, four hundred four thousand, forty-three".