2112012109973 has 8 divisors (see below), whose sum is σ = 2236304346840. Its totient is φ = 1987726120960.

The previous prime is 2112012109969. The next prime is 2112012110009. The reversal of 2112012109973 is 3799012102112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 484606722769 + 1627405387204 = 696137^2 + 1275698^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2112012109973 - 2² = 2112012109969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112012109943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856898 + ... + 2226723.

It is an arithmetic number, because the mean of its divisors is an integer number (279538043355).

Almost surely, 2^{2112012109973} is an apocalyptic number.

It is an amenable number.

2112012109973 is a deficient number, since it is larger than the sum of its proper divisors (124292236867).

2112012109973 is a wasteful number, since it uses less digits than its factorization.

2112012109973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123927.

The product of its (nonzero) digits is 13608, while the sum is 38.

The spelling of 2112012109973 in words is "two trillion, one hundred twelve billion, twelve million, one hundred nine thousand, nine hundred seventy-three".