22010121109 has 2 divisors, whose sum is σ = 22010121110. Its totient is φ = 22010121108.

The previous prime is 22010121019. The next prime is 22010121127. The reversal of 22010121109 is 90112101022.

It is a happy number.

Together with previous prime (22010121019) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21595184209 + 414936900 = 146953^2 + 20370^2 .

It is a cyclic number.

It is not a de Polignac number, because 22010121109 - 2⁹ = 22010120597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22010121139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005060554 + 11005060555.

It is an arithmetic number, because the mean of its divisors is an integer number (11005060555).

Almost surely, 2^22010121109 is an apocalyptic number.

It is an amenable number.

22010121109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22010121109 is an equidigital number, since it uses as much as digits as its factorization.

22010121109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 22010121109 in words is "twenty-two billion, ten million, one hundred twenty-one thousand, one hundred nine".