11720022 has 16 divisors (see below), whose sum is σ = 23489472. Its totient is φ = 3898440.

The previous prime is 11719999. The next prime is 11720029. The reversal of 11720022 is 22002711.

It is a junction number, because it is equal to n+sod(n) for n = 11719983 and 11720010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11720029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1497 + ... + 5067.

It is an arithmetic number, because the mean of its divisors is an integer number (1468092).

Almost surely, 2^11720022 is an apocalyptic number.

11720022 is an abundant number, since it is smaller than the sum of its proper divisors (11769450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11720022 is a wasteful number, since it uses less digits than its factorization.

11720022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 11720022 is about 3423.4517668575. The cubic root of 11720022 is about 227.1482920374.

Adding to 11720022 its reverse (22002711), we get a palindrome (33722733).

The spelling of 11720022 in words is "eleven million, seven hundred twenty thousand, twenty-two".