22120011 has 12 divisors (see below), whose sum is σ = 33053280. Its totient is φ = 14238000.

The previous prime is 22119989. The next prime is 22120031. The reversal of 22120011 is 11002122.

It is not a de Polignac number, because 22120011 - 2¹³ = 22111819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 22119975 and 22120002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42115 + ... + 42636.

It is an arithmetic number, because the mean of its divisors is an integer number (2754440).

Almost surely, 2^22120011 is an apocalyptic number.

22120011 is a deficient number, since it is larger than the sum of its proper divisors (10933269).

22120011 is a wasteful number, since it uses less digits than its factorization.

22120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84786 (or 84783 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 22120011 is about 4703.1915759407. The cubic root of 22120011 is about 280.7125177964.

Adding to 22120011 its reverse (11002122), we get a palindrome (33122133).

The spelling of 22120011 in words is "twenty-two million, one hundred twenty thousand, eleven".