2011002121189 has 2 divisors, whose sum is σ = 2011002121190. Its totient is φ = 2011002121188.

The previous prime is 2011002121181. The next prime is 2011002121201. The reversal of 2011002121189 is 9811212001102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1723312562500 + 287689558689 = 1312750^2 + 536367^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011002121189 - 2³ = 2011002121181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011002121181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005501060594 + 1005501060595.

It is an arithmetic number, because the mean of its divisors is an integer number (1005501060595).

Almost surely, 2^{2011002121189} is an apocalyptic number.

It is an amenable number.

2011002121189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011002121189 is an equidigital number, since it uses as much as digits as its factorization.

2011002121189 is an evil number, because the sum of its binary digits is even.

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

The spelling of 2011002121189 in words is "two trillion, eleven billion, two million, one hundred twenty-one thousand, one hundred eighty-nine".