22140021109 has 2 divisors, whose sum is σ = 22140021110. Its totient is φ = 22140021108.

The previous prime is 22140021103. The next prime is 22140021139. The reversal of 22140021109 is 90112004122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19391955025 + 2748066084 = 139255^2 + 52422^2 .

It is a cyclic number.

It is not a de Polignac number, because 22140021109 - 2¹¹ = 22140019061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22140021109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22140021103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11070010554 + 11070010555.

It is an arithmetic number, because the mean of its divisors is an integer number (11070010555).

Almost surely, 2^22140021109 is an apocalyptic number.

It is an amenable number.

22140021109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22140021109 is an equidigital number, since it uses as much as digits as its factorization.

22140021109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 22140021109 in words is "twenty-two billion, one hundred forty million, twenty-one thousand, one hundred nine".