55212345121236 has 12 divisors (see below), whose sum is σ = 128828805282912. Its totient is φ = 18404115040408.

The previous prime is 55212345121189. The next prime is 55212345121247. The reversal of 55212345121236 is 63212154321255.

55212345121236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2300514380040 + ... + 2300514380063.

It is an arithmetic number, because the mean of its divisors is an integer number (10735733773576).

Almost surely, 2^{55212345121236} is an apocalyptic number.

It is an amenable number.

55212345121236 is an abundant number, since it is smaller than the sum of its proper divisors (73616460161676).

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

55212345121236 is a wasteful number, since it uses less digits than its factorization.

55212345121236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601028760110 (or 4601028760108 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The spelling of 55212345121236 in words is "fifty-five trillion, two hundred twelve billion, three hundred forty-five million, one hundred twenty-one thousand, two hundred thirty-six".