2120001994 has 16 divisors (see below), whose sum is σ = 3476603520. Its totient is φ = 961551360.

The previous prime is 2120001941. The next prime is 2120002013. The reversal of 2120001994 is 4991000212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93879 + ... + 114250.

It is an arithmetic number, because the mean of its divisors is an integer number (217287720).

Almost surely, 2^2120001994 is an apocalyptic number.

2120001994 is a deficient number, since it is larger than the sum of its proper divisors (1356601526).

2120001994 is a wasteful number, since it uses less digits than its factorization.

2120001994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208605.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 2120001994 is about 46043.4793863366. The cubic root of 2120001994 is about 1284.6320604727.

The spelling of 2120001994 in words is "two billion, one hundred twenty million, one thousand, nine hundred ninety-four".