2012202109 has 2 divisors, whose sum is σ = 2012202110. Its totient is φ = 2012202108.

The previous prime is 2012202079. The next prime is 2012202113. The reversal of 2012202109 is 9012022102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1670765625 + 341436484 = 40875^2 + 18478^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012202109 - 2⁵ = 2012202077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012202119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006101054 + 1006101055.

It is an arithmetic number, because the mean of its divisors is an integer number (1006101055).

Almost surely, 2^2012202109 is an apocalyptic number.

It is an amenable number.

2012202109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012202109 is an equidigital number, since it uses as much as digits as its factorization.

2012202109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2012202109 is about 44857.5758261634. The cubic root of 2012202109 is about 1262.4781389411.

The spelling of 2012202109 in words is "two billion, twelve million, two hundred two thousand, one hundred nine".