2100201220189 has 2 divisors, whose sum is σ = 2100201220190. Its totient is φ = 2100201220188.

The previous prime is 2100201220181. The next prime is 2100201220193. The reversal of 2100201220189 is 9810221020012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1149488468164 + 950712752025 = 1072142^2 + 975045^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100201220189 - 2³ = 2100201220181 is a prime.

It is a super-2 number, since 2×2100201220189² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100201220181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050100610094 + 1050100610095.

It is an arithmetic number, because the mean of its divisors is an integer number (1050100610095).

Almost surely, 2^{2100201220189} is an apocalyptic number.

It is an amenable number.

2100201220189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100201220189 is an equidigital number, since it uses as much as digits as its factorization.

2100201220189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 2100201220189 in words is "two trillion, one hundred billion, two hundred one million, two hundred twenty thousand, one hundred eighty-nine".