2121299590 has 16 divisors (see below), whose sum is σ = 3843968400. Its totient is φ = 842824480.

The previous prime is 2121299581. The next prime is 2121299617. The reversal of 2121299590 is 959921212.

It is a congruent number.

It is an unprimeable number.

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, 710356 + ... + 713335.

It is an arithmetic number, because the mean of its divisors is an integer number (240248025).

Almost surely, 2^2121299590 is an apocalyptic number.

2121299590 is a deficient number, since it is larger than the sum of its proper divisors (1722668810).

2121299590 is a wasteful number, since it uses less digits than its factorization.

2121299590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423847.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 2121299590 is about 46057.5682163095. The cubic root of 2121299590 is about 1284.8941032205.

The spelling of 2121299590 in words is "two billion, one hundred twenty-one million, two hundred ninety-nine thousand, five hundred ninety".