22120011011 has 4 divisors (see below), whose sum is σ = 25280012592. Its totient is φ = 18960009432.

The previous prime is 22120010999. The next prime is 22120011013. The reversal of 22120011011 is 11011002122.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22120011011 - 2²⁶ = 22052902147 is a prime.

It is a super-2 number, since 2×22120011011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22120010983 and 22120011001.

It is not an unprimeable number, because it can be changed into a prime (22120011013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1580000780 + ... + 1580000793.

It is an arithmetic number, because the mean of its divisors is an integer number (6320003148).

Almost surely, 2^22120011011 is an apocalyptic number.

22120011011 is a deficient number, since it is larger than the sum of its proper divisors (3160001581).

22120011011 is an equidigital number, since it uses as much as digits as its factorization.

22120011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160001580.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22120011011 its reverse (11011002122), we get a palindrome (33131013133).

The spelling of 22120011011 in words is "twenty-two billion, one hundred twenty million, eleven thousand, eleven".