2102012212189 has 2 divisors, whose sum is σ = 2102012212190. Its totient is φ = 2102012212188.

The previous prime is 2102012212171. The next prime is 2102012212241. The reversal of 2102012212189 is 9812122102012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1436617988100 + 665394224089 = 1198590^2 + 815717^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102012212189 - 2¹⁹ = 2102011687901 is a prime.

It is a super-3 number, since 3×2102012212189³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2102012212189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102012212789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051006106094 + 1051006106095.

It is an arithmetic number, because the mean of its divisors is an integer number (1051006106095).

Almost surely, 2^{2102012212189} is an apocalyptic number.

It is an amenable number.

2102012212189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102012212189 is an equidigital number, since it uses as much as digits as its factorization.

2102012212189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 2102012212189 in words is "two trillion, one hundred two billion, twelve million, two hundred twelve thousand, one hundred eighty-nine".