20222200199989 has 2 divisors, whose sum is σ = 20222200199990. Its totient is φ = 20222200199988.

The previous prime is 20222200199963. The next prime is 20222200200079. The reversal of 20222200199989 is 98999100222202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14195337228900 + 6026862971089 = 3767670^2 + 2454967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20222200199989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20222200499989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111100099994 + 10111100099995.

It is an arithmetic number, because the mean of its divisors is an integer number (10111100099995).

Almost surely, 2^{20222200199989} is an apocalyptic number.

It is an amenable number.

20222200199989 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222200199989 is an equidigital number, since it uses as much as digits as its factorization.

20222200199989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 55.

The spelling of 20222200199989 in words is "twenty trillion, two hundred twenty-two billion, two hundred million, one hundred ninety-nine thousand, nine hundred eighty-nine".