212100454244255 has 32 divisors (see below), whose sum is σ = 271556947243008. Its totient is φ = 158686309584000.

The previous prime is 212100454244243. The next prime is 212100454244257. The reversal of 212100454244255 is 552442454001212.

It is not a de Polignac number, because 212100454244255 - 2⁸ = 212100454243999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100454244257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89353271 + ... + 91696280.

It is an arithmetic number, because the mean of its divisors is an integer number (8486154601344).

Almost surely, 2^{212100454244255} is an apocalyptic number.

212100454244255 is a deficient number, since it is larger than the sum of its proper divisors (59456492998753).

212100454244255 is a wasteful number, since it uses less digits than its factorization.

212100454244255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181049807.

The product of its (nonzero) digits is 512000, while the sum is 41.

The spelling of 212100454244255 in words is "two hundred twelve trillion, one hundred billion, four hundred fifty-four million, two hundred forty-four thousand, two hundred fifty-five".