10221220011109 has 2 divisors, whose sum is σ = 10221220011110. Its totient is φ = 10221220011108.

The previous prime is 10221220011103. The next prime is 10221220011179. The reversal of 10221220011109 is 90111002212201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9185160674209 + 1036059336900 = 3030703^2 + 1017870^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221220011109 - 2⁵ = 10221220011077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10221220011109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221220011103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110610005554 + 5110610005555.

It is an arithmetic number, because the mean of its divisors is an integer number (5110610005555).

Almost surely, 2^{10221220011109} is an apocalyptic number.

It is an amenable number.

10221220011109 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221220011109 is an equidigital number, since it uses as much as digits as its factorization.

10221220011109 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 10221220011109 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty million, eleven thousand, one hundred nine".