212404330055 has 16 divisors (see below), whose sum is σ = 261475651584. Its totient is φ = 165562254240.

The previous prime is 212404330043. The next prime is 212404330091. The reversal of 212404330055 is 550033404212.

It is a happy number.

212404330055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212404330055 - 2⁸ = 212404329799 is a prime.

It is a super-2 number, since 2×212404330055² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1974161 + ... + 2078970.

It is an arithmetic number, because the mean of its divisors is an integer number (16342228224).

Almost surely, 2^212404330055 is an apocalyptic number.

212404330055 is a deficient number, since it is larger than the sum of its proper divisors (49071321529).

212404330055 is a wasteful number, since it uses less digits than its factorization.

212404330055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4053406.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 212404330055 its reverse (550033404212), we get a palindrome (762437734267).

The spelling of 212404330055 in words is "two hundred twelve billion, four hundred four million, three hundred thirty thousand, fifty-five".