2112194730 has 16 divisors (see below), whose sum is σ = 5069267424. Its totient is φ = 563251920.

The previous prime is 2112194681. The next prime is 2112194731. The reversal of 2112194730 is 374912112.

It is a super-2 number, since 2×2112194730² = 8922733154879545800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 70406491 = 2112194730 / (2 + 1 + 1 + 2 + 1 + 9 + 4 + 7 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (2112194731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35203216 + ... + 35203275.

It is an arithmetic number, because the mean of its divisors is an integer number (316829214).

Almost surely, 2^2112194730 is an apocalyptic number.

2112194730 is an abundant number, since it is smaller than the sum of its proper divisors (2957072694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2112194730 is a wasteful number, since it uses less digits than its factorization.

2112194730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70406501.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 2112194730 is about 45958.6197573426. The cubic root of 2112194730 is about 1283.0531628042.

The spelling of 2112194730 in words is "two billion, one hundred twelve million, one hundred ninety-four thousand, seven hundred thirty".