2121055335 has 32 divisors (see below), whose sum is σ = 4309447680. Its totient is φ = 969624864.

The previous prime is 2121055297. The next prime is 2121055361. The reversal of 2121055335 is 5335501212.

It is a happy number.

2121055335 is a `hidden beast` number, since 2 + 121 + 0 + 5 + 533 + 5 = 666.

It is not a de Polignac number, because 2121055335 - 2⁶ = 2121055271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2121055299 and 2121055308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1121307 + ... + 1123196.

It is an arithmetic number, because the mean of its divisors is an integer number (134670240).

Almost surely, 2^2121055335 is an apocalyptic number.

2121055335 is an abundant number, since it is smaller than the sum of its proper divisors (2188392345).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121055335 is a wasteful number, since it uses less digits than its factorization.

2121055335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244524 (or 2244518 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 2121055335 is about 46054.9165127894. The cubic root of 2121055335 is about 1284.8447853625.

Adding to 2121055335 its reverse (5335501212), we get a palindrome (7456556547).

The spelling of 2121055335 in words is "two billion, one hundred twenty-one million, fifty-five thousand, three hundred thirty-five".