2121152054 has 16 divisors (see below), whose sum is σ = 3682291200. Its totient is φ = 897557544.

The previous prime is 2121152009. The next prime is 2121152087. The reversal of 2121152054 is 4502511212.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 957824 + ... + 960035.

It is an arithmetic number, because the mean of its divisors is an integer number (230143200).

Almost surely, 2^2121152054 is an apocalyptic number.

2121152054 is a deficient number, since it is larger than the sum of its proper divisors (1561139146).

2121152054 is a wasteful number, since it uses less digits than its factorization.

2121152054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917947.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2121152054 is about 46055.9665407209. The cubic root of 2121152054 is about 1284.8643144796.

Adding to 2121152054 its reverse (4502511212), we get a palindrome (6623663266).

The spelling of 2121152054 in words is "two billion, one hundred twenty-one million, one hundred fifty-two thousand, fifty-four".