20220212189 has 2 divisors, whose sum is σ = 20220212190. Its totient is φ = 20220212188.

The previous prime is 20220212171. The next prime is 20220212263. The reversal of 20220212189 is 98121202202.

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., 11698152964 + 8522059225 = 108158^2 + 92315^2 .

It is a cyclic number.

It is not a de Polignac number, because 20220212189 - 2³² = 15925244893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20220212119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110106094 + 10110106095.

It is an arithmetic number, because the mean of its divisors is an integer number (10110106095).

Almost surely, 2^20220212189 is an apocalyptic number.

It is an amenable number.

20220212189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220212189 is an equidigital number, since it uses as much as digits as its factorization.

20220212189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 20220212189 in words is "twenty billion, two hundred twenty million, two hundred twelve thousand, one hundred eighty-nine".