109990006119221 has 2 divisors, whose sum is σ = 109990006119222. Its totient is φ = 109990006119220.

The previous prime is 109990006119187. The next prime is 109990006119241. The reversal of 109990006119221 is 122911600099901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104824322640625 + 5165683478596 = 10238375^2 + 2272814^2 .

It is an emirp because it is prime and its reverse (122911600099901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109990006119221 - 2³⁰ = 109988932377397 is a prime.

It is a super-2 number, since 2×109990006119221² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 109990006119221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109990006119241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54995003059610 + 54995003059611.

It is an arithmetic number, because the mean of its divisors is an integer number (54995003059611).

Almost surely, 2^{109990006119221} is an apocalyptic number.

It is an amenable number.

109990006119221 is a deficient number, since it is larger than the sum of its proper divisors (1).

109990006119221 is an equidigital number, since it uses as much as digits as its factorization.

109990006119221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 50.

The spelling of 109990006119221 in words is "one hundred nine trillion, nine hundred ninety billion, six million, one hundred nineteen thousand, two hundred twenty-one".