220101212189 has 2 divisors, whose sum is σ = 220101212190. Its totient is φ = 220101212188.

The previous prime is 220101212161. The next prime is 220101212203. The reversal of 220101212189 is 981212101022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220094216164 + 6996025 = 469142^2 + 2645^2 .

It is a cyclic number.

It is not a de Polignac number, because 220101212189 - 2¹⁶ = 220101146653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220101212119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050606094 + 110050606095.

It is an arithmetic number, because the mean of its divisors is an integer number (110050606095).

Almost surely, 2^220101212189 is an apocalyptic number.

It is an amenable number.

220101212189 is a deficient number, since it is larger than the sum of its proper divisors (1).

220101212189 is an equidigital number, since it uses as much as digits as its factorization.

220101212189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 220101212189 in words is "two hundred twenty billion, one hundred one million, two hundred twelve thousand, one hundred eighty-nine".