2120121295 has 8 divisors (see below), whose sum is σ = 2546190000. Its totient is φ = 1694734080.

The previous prime is 2120121293. The next prime is 2120121313. The reversal of 2120121295 is 5921210212.

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

It is not a de Polignac number, because 2120121295 - 2¹ = 2120121293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120121293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163501 + ... + 175990.

It is an arithmetic number, because the mean of its divisors is an integer number (318273750).

Almost surely, 2^2120121295 is an apocalyptic number.

2120121295 is a deficient number, since it is larger than the sum of its proper divisors (426068705).

2120121295 is a wasteful number, since it uses less digits than its factorization.

2120121295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340745.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 2120121295 is about 46044.7748935751. The cubic root of 2120121295 is about 1284.6561571504.

The spelling of 2120121295 in words is "two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred ninety-five".