22111333109 has 2 divisors, whose sum is σ = 22111333110. Its totient is φ = 22111333108.

The previous prime is 22111333093. The next prime is 22111333129. The reversal of 22111333109 is 90133311122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19474202500 + 2637130609 = 139550^2 + 51353^2 .

It is a cyclic number.

It is not a de Polignac number, because 22111333109 - 2⁴ = 22111333093 is a prime.

It is a super-2 number, since 2×22111333109² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22111333129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055666554 + 11055666555.

It is an arithmetic number, because the mean of its divisors is an integer number (11055666555).

Almost surely, 2^22111333109 is an apocalyptic number.

It is an amenable number.

22111333109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111333109 is an equidigital number, since it uses as much as digits as its factorization.

22111333109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 22111333109 in words is "twenty-two billion, one hundred eleven million, three hundred thirty-three thousand, one hundred nine".