2122111002109 has 4 divisors (see below), whose sum is σ = 2425269716704. Its totient is φ = 1818952287516.

The previous prime is 2122111002103. The next prime is 2122111002119. The reversal of 2122111002109 is 9012001112212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-2122111002109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122111002109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122111002103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151579357287 + ... + 151579357300.

It is an arithmetic number, because the mean of its divisors is an integer number (606317429176).

Almost surely, 2^{2122111002109} is an apocalyptic number.

It is an amenable number.

2122111002109 is a deficient number, since it is larger than the sum of its proper divisors (303158714595).

2122111002109 is an equidigital number, since it uses as much as digits as its factorization.

2122111002109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303158714594.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 2122111002109 in words is "two trillion, one hundred twenty-two billion, one hundred eleven million, two thousand, one hundred nine".