22111100149 has 2 divisors, whose sum is σ = 22111100150. Its totient is φ = 22111100148.

The previous prime is 22111100119. The next prime is 22111100203. The reversal of 22111100149 is 94100111122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15158041924 + 6953058225 = 123118^2 + 83385^2 .

It is a cyclic number.

It is not a de Polignac number, because 22111100149 - 2¹¹ = 22111098101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22111100119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11055550074 + 11055550075.

It is an arithmetic number, because the mean of its divisors is an integer number (11055550075).

Almost surely, 2^22111100149 is an apocalyptic number.

It is an amenable number.

22111100149 is a deficient number, since it is larger than the sum of its proper divisors (1).

22111100149 is an equidigital number, since it uses as much as digits as its factorization.

22111100149 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 22.

The spelling of 22111100149 in words is "twenty-two billion, one hundred eleven million, one hundred thousand, one hundred forty-nine".