11920222013 has 12 divisors (see below), whose sum is σ = 13875815520. Its totient is φ = 10210381272.

The previous prime is 11920222007. The next prime is 11920222019. The reversal of 11920222013 is 31022202911.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11920222007) and next prime (11920222019).

It is not a de Polignac number, because 11920222013 - 2¹⁴ = 11920205629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11920222013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11920222019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9353 + ... + 154686.

It is an arithmetic number, because the mean of its divisors is an integer number (1156317960).

Almost surely, 2^11920222013 is an apocalyptic number.

It is an amenable number.

11920222013 is a deficient number, since it is larger than the sum of its proper divisors (1955593507).

11920222013 is a wasteful number, since it uses less digits than its factorization.

11920222013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165536 (or 165529 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 11920222013 its reverse (31022202911), we get a palindrome (42942424924).

The spelling of 11920222013 in words is "eleven billion, nine hundred twenty million, two hundred twenty-two thousand, thirteen".