2012022100189 has 2 divisors, whose sum is σ = 2012022100190. Its totient is φ = 2012022100188.

The previous prime is 2012022100177. The next prime is 2012022100217. The reversal of 2012022100189 is 9810012202102.

It is an a-pointer prime, because the next prime (2012022100217) can be obtained adding 2012022100189 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1983618728100 + 28403372089 = 1408410^2 + 168533^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012022100189 - 2⁷ = 2012022100061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012022100139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006011050094 + 1006011050095.

It is an arithmetic number, because the mean of its divisors is an integer number (1006011050095).

Almost surely, 2^{2012022100189} is an apocalyptic number.

It is an amenable number.

2012022100189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012022100189 is an equidigital number, since it uses as much as digits as its factorization.

2012022100189 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 28.

The spelling of 2012022100189 in words is "two trillion, twelve billion, twenty-two million, one hundred thousand, one hundred eighty-nine".