2121830455255 has 8 divisors (see below), whose sum is σ = 2909938910112. Its totient is φ = 1454969455008.

The previous prime is 2121830455249. The next prime is 2121830455307. The reversal of 2121830455255 is 5525540381212.

It is a happy number.

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 2121830455255 - 2⁹ = 2121830454743 is a prime.

It is a Duffinian number.

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, 30311863612 + ... + 30311863681.

It is an arithmetic number, because the mean of its divisors is an integer number (363742363764).

Almost surely, 2^{2121830455255} is an apocalyptic number.

2121830455255 is a deficient number, since it is larger than the sum of its proper divisors (788108454857).

2121830455255 is an equidigital number, since it uses as much as digits as its factorization.

2121830455255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60623727305.

The product of its (nonzero) digits is 480000, while the sum is 43.

The spelling of 2121830455255 in words is "two trillion, one hundred twenty-one billion, eight hundred thirty million, four hundred fifty-five thousand, two hundred fifty-five".