2121096855 has 8 divisors (see below), whose sum is σ = 3393754992. Its totient is φ = 1131251648.

The previous prime is 2121096839. The next prime is 2121096871. The reversal of 2121096855 is 5586901212.

It is an interprime number because it is at equal distance from previous prime (2121096839) and next prime (2121096871).

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

It is a cyclic number.

It is not a de Polignac number, because 2121096855 - 2⁴ = 2121096839 is a prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70703214 + ... + 70703243.

It is an arithmetic number, because the mean of its divisors is an integer number (424219374).

Almost surely, 2^2121096855 is an apocalyptic number.

2121096855 is a deficient number, since it is larger than the sum of its proper divisors (1272658137).

2121096855 is a wasteful number, since it uses less digits than its factorization.

2121096855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141406465.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 2121096855 is about 46055.3672767898. The cubic root of 2121096855 is about 1284.8531689891.

The spelling of 2121096855 in words is "two billion, one hundred twenty-one million, ninety-six thousand, eight hundred fifty-five".