22120001011 has 16 divisors (see below), whose sum is σ = 22469325408. Its totient is φ = 21773664000.

The previous prime is 22120001009. The next prime is 22120001017. The reversal of 22120001011 is 11010002122.

It is a cyclic number.

It is not a de Polignac number, because 22120001011 - 2¹ = 22120001009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22120001017) 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, 16744231 + ... + 16745551.

It is an arithmetic number, because the mean of its divisors is an integer number (1404332838).

Almost surely, 2^22120001011 is an apocalyptic number.

22120001011 is a deficient number, since it is larger than the sum of its proper divisors (349324397).

22120001011 is a wasteful number, since it uses less digits than its factorization.

22120001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22120001011 its reverse (11010002122), we get a palindrome (33130003133).

The spelling of 22120001011 in words is "twenty-two billion, one hundred twenty million, one thousand, eleven".