2010111221009 has 2 divisors, whose sum is σ = 2010111221010. Its totient is φ = 2010111221008.

The previous prime is 2010111220927. The next prime is 2010111221017. The reversal of 2010111221009 is 9001221110102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1036934890000 + 973176331009 = 1018300^2 + 986497^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010111221009 - 2⁸ = 2010111220753 is a prime.

It is not a weakly prime, because it can be changed into another prime (2010111221099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005055610504 + 1005055610505.

It is an arithmetic number, because the mean of its divisors is an integer number (1005055610505).

Almost surely, 2^{2010111221009} is an apocalyptic number.

It is an amenable number.

2010111221009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010111221009 is an equidigital number, since it uses as much as digits as its factorization.

2010111221009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 2010111221009 in words is "two trillion, ten billion, one hundred eleven million, two hundred twenty-one thousand, nine".