2021222200189 has 2 divisors, whose sum is σ = 2021222200190. Its totient is φ = 2021222200188.

The previous prime is 2021222200177. The next prime is 2021222200373. The reversal of 2021222200189 is 9810022221202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1531443375225 + 489778824964 = 1237515^2 + 699842^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021222200189 - 2²⁵ = 2021188645757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2021222200189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021222270189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010611100094 + 1010611100095.

It is an arithmetic number, because the mean of its divisors is an integer number (1010611100095).

Almost surely, 2^{2021222200189} is an apocalyptic number.

It is an amenable number.

2021222200189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021222200189 is an equidigital number, since it uses as much as digits as its factorization.

2021222200189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 2021222200189 in words is "two trillion, twenty-one billion, two hundred twenty-two million, two hundred thousand, one hundred eighty-nine".