2011221012224 has 18 divisors (see below), whose sum is σ = 4014585692880. Its totient is φ = 1005610505984.

The previous prime is 2011221012187. The next prime is 2011221012259. The reversal of 2011221012224 is 4222101221102.

It is a happy number.

It is a super-2 number, since 2×2011221012224² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2011221012196 and 2011221012205.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 3928165784 + ... + 3928166295.

Almost surely, 2^{2011221012224} is an apocalyptic number.

It is an amenable number.

2011221012224 is a deficient number, since it is larger than the sum of its proper divisors (2003364680656).

2011221012224 is an frugal number, since it uses more digits than its factorization.

2011221012224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7856332095 (or 7856332081 counting only the distinct ones).

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

Adding to 2011221012224 its reverse (4222101221102), we get a palindrome (6233322233326).

The spelling of 2011221012224 in words is "two trillion, eleven billion, two hundred twenty-one million, twelve thousand, two hundred twenty-four".