22122122011 has 16 divisors (see below), whose sum is σ = 24442829568. Its totient is φ = 19854172000.

The previous prime is 22122121951. The next prime is 22122122027. The reversal of 22122122011 is 11022122122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22122122011 - 2²⁷ = 21987904283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122122051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356826 + ... + 414208.

It is an arithmetic number, because the mean of its divisors is an integer number (1527676848).

Almost surely, 2^22122122011 is an apocalyptic number.

22122122011 is a deficient number, since it is larger than the sum of its proper divisors (2320707557).

22122122011 is a wasteful number, since it uses less digits than its factorization.

22122122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57842.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22122122011 its reverse (11022122122), we get a palindrome (33144244133).

The spelling of 22122122011 in words is "twenty-two billion, one hundred twenty-two million, one hundred twenty-two thousand, eleven".