22012002109 has 2 divisors, whose sum is σ = 22012002110. Its totient is φ = 22012002108.

The previous prime is 22012002107. The next prime is 22012002119. The reversal of 22012002109 is 90120021022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14579838009 + 7432164100 = 120747^2 + 86210^2 .

It is a cyclic number.

It is not a de Polignac number, because 22012002109 - 2¹ = 22012002107 is a prime.

Together with 22012002107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22012002107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006001054 + 11006001055.

It is an arithmetic number, because the mean of its divisors is an integer number (11006001055).

Almost surely, 2^22012002109 is an apocalyptic number.

It is an amenable number.

22012002109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012002109 is an equidigital number, since it uses as much as digits as its factorization.

22012002109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 22012002109 in words is "twenty-two billion, twelve million, two thousand, one hundred nine".