100022221000001 has 2 divisors, whose sum is σ = 100022221000002. Its totient is φ = 100022221000000.

The previous prime is 100022220999977. The next prime is 100022221000019. The reversal of 100022221000001 is 100000122220001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100000020000001 + 22201000000 = 10000001^2 + 149000^2 .

It is an emirp because it is prime and its reverse (100000122220001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100022221000001 - 2²⁶ = 100022153891137 is a prime.

It is not a weakly prime, because it can be changed into another prime (100022221000901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50011110500000 + 50011110500001.

It is an arithmetic number, because the mean of its divisors is an integer number (50011110500001).

Almost surely, 2^{100022221000001} is an apocalyptic number.

It is an amenable number.

100022221000001 is a deficient number, since it is larger than the sum of its proper divisors (1).

100022221000001 is an equidigital number, since it uses as much as digits as its factorization.

100022221000001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100022221000001 its reverse (100000122220001), we get a palindrome (200022343220002).

The spelling of 100022221000001 in words is "one hundred trillion, twenty-two billion, two hundred twenty-one million, one", and thus it is an aban number.