2121292798 has 8 divisors (see below), whose sum is σ = 3182282280. Its totient is φ = 1060532040.

The previous prime is 2121292787. The next prime is 2121292889. The reversal of 2121292798 is 8972921212.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31728 + ... + 72451.

It is an arithmetic number, because the mean of its divisors is an integer number (397785285).

Almost surely, 2^2121292798 is an apocalyptic number.

2121292798 is a deficient number, since it is larger than the sum of its proper divisors (1060989482).

2121292798 is a wasteful number, since it uses less digits than its factorization.

2121292798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114362.

The product of its digits is 72576, while the sum is 43.

The square root of 2121292798 is about 46057.4944824401. The cubic root of 2121292798 is about 1284.8927318897.

The spelling of 2121292798 in words is "two billion, one hundred twenty-one million, two hundred ninety-two thousand, seven hundred ninety-eight".