22220102201989 has 2 divisors, whose sum is σ = 22220102201990. Its totient is φ = 22220102201988.

The previous prime is 22220102201939. The next prime is 22220102202029. The reversal of 22220102201989 is 98910220102222.

It is an a-pointer prime, because the next prime (22220102202029) can be obtained adding 22220102201989 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12553238733025 + 9666863468964 = 3543055^2 + 3109158^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220102201989 - 2¹¹ = 22220102199941 is a prime.

It is a super-2 number, since 2×22220102201989² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22220102201939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110051100994 + 11110051100995.

It is an arithmetic number, because the mean of its divisors is an integer number (11110051100995).

Almost surely, 2^{22220102201989} is an apocalyptic number.

It is an amenable number.

22220102201989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220102201989 is an equidigital number, since it uses as much as digits as its factorization.

22220102201989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 22220102201989 in words is "twenty-two trillion, two hundred twenty billion, one hundred two million, two hundred one thousand, nine hundred eighty-nine".