20212001101189 has 2 divisors, whose sum is σ = 20212001101190. Its totient is φ = 20212001101188.

The previous prime is 20212001101163. The next prime is 20212001101291. The reversal of 20212001101189 is 98110110021202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10669153378689 + 9542847722500 = 3266367^2 + 3089150^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212001101189 - 2⁹ = 20212001100677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20212001101109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106000550594 + 10106000550595.

It is an arithmetic number, because the mean of its divisors is an integer number (10106000550595).

Almost surely, 2^{20212001101189} is an apocalyptic number.

It is an amenable number.

20212001101189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212001101189 is an equidigital number, since it uses as much as digits as its factorization.

20212001101189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 28.

The spelling of 20212001101189 in words is "twenty trillion, two hundred twelve billion, one million, one hundred one thousand, one hundred eighty-nine".