2121020192 has 24 divisors (see below), whose sum is σ = 4177889100. Its totient is φ = 1059969024.

The previous prime is 2121020191. The next prime is 2121020201. The reversal of 2121020192 is 2910201212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1638954256 + 482065936 = 40484^2 + 21956^2 .

It is not an unprimeable number, because it can be changed into a prime (2121020191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50984 + ... + 82712.

Almost surely, 2^2121020192 is an apocalyptic number.

It is an amenable number.

2121020192 is a deficient number, since it is larger than the sum of its proper divisors (2056868908).

2121020192 is a wasteful number, since it uses less digits than its factorization.

2121020192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33828 (or 33820 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 2121020192 is about 46054.5349775676. The cubic root of 2121020192 is about 1284.8376892802.

It can be divided in two parts, 2121020 and 192, that added together give a palindrome (2121212).

The spelling of 2121020192 in words is "two billion, one hundred twenty-one million, twenty thousand, one hundred ninety-two".