2011124023221 has 16 divisors (see below), whose sum is σ = 2863446888960. Its totient is φ = 1252758010560.

The previous prime is 2011124023189. The next prime is 2011124023253. The reversal of 2011124023221 is 1223204211102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2011124023189) and next prime (2011124023253).

It is not a de Polignac number, because 2011124023221 - 2⁵ = 2011124023189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011124023121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372841950 + ... + 372847343.

It is an arithmetic number, because the mean of its divisors is an integer number (178965430560).

Almost surely, 2^{2011124023221} is an apocalyptic number.

It is an amenable number.

2011124023221 is a deficient number, since it is larger than the sum of its proper divisors (852322865739).

2011124023221 is a wasteful number, since it uses less digits than its factorization.

2011124023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745689356.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2011124023221 its reverse (1223204211102), we get a palindrome (3234328234323).

The spelling of 2011124023221 in words is "two trillion, eleven billion, one hundred twenty-four million, twenty-three thousand, two hundred twenty-one".