2011223434 has 16 divisors (see below), whose sum is σ = 3367631520. Its totient is φ = 892931760.

The previous prime is 2011223413. The next prime is 2011223441. The reversal of 2011223434 is 4343221102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1062069 + ... + 1063960.

It is an arithmetic number, because the mean of its divisors is an integer number (210476970).

Almost surely, 2^2011223434 is an apocalyptic number.

2011223434 is a deficient number, since it is larger than the sum of its proper divisors (1356408086).

2011223434 is a wasteful number, since it uses less digits than its factorization.

2011223434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126085.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2011223434 is about 44846.6658069471. The cubic root of 2011223434 is about 1262.2734285306.

Adding to 2011223434 its reverse (4343221102), we get a palindrome (6354444536).

The spelling of 2011223434 in words is "two billion, eleven million, two hundred twenty-three thousand, four hundred thirty-four".