2120021094 has 32 divisors (see below), whose sum is σ = 4328160480. Its totient is φ = 692037632.

The previous prime is 2120021093. The next prime is 2120021107. The reversal of 2120021094 is 4901200212.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120021094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120021093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171142 + ... + 183110.

It is an arithmetic number, because the mean of its divisors is an integer number (135255015).

Almost surely, 2^2120021094 is an apocalyptic number.

2120021094 is an abundant number, since it is smaller than the sum of its proper divisors (2208139386).

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

2120021094 is a wasteful number, since it uses less digits than its factorization.

2120021094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12584.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2120021094 is about 46043.6867985178. The cubic root of 2120021094 is about 1284.6359183933.

The spelling of 2120021094 in words is "two billion, one hundred twenty million, twenty-one thousand, ninety-four".