2211400443 has 48 divisors (see below), whose sum is σ = 3765864960. Its totient is φ = 1126662912.

The previous prime is 2211400441. The next prime is 2211400463. The reversal of 2211400443 is 3440041122.

It is not a de Polignac number, because 2211400443 - 2¹ = 2211400441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2211400441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120298 + ... + 137456.

It is an arithmetic number, because the mean of its divisors is an integer number (78455520).

Almost surely, 2^2211400443 is an apocalyptic number.

2211400443 is a deficient number, since it is larger than the sum of its proper divisors (1554464517).

2211400443 is a wasteful number, since it uses less digits than its factorization.

2211400443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17224 (or 17205 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2211400443 is about 47025.5296939864. The cubic root of 2211400443 is about 1302.8341408389.

Adding to 2211400443 its reverse (3440041122), we get a palindrome (5651441565).

The spelling of 2211400443 in words is "two billion, two hundred eleven million, four hundred thousand, four hundred forty-three".