212454322355555 has 64 divisors (see below), whose sum is σ = 294144917667840. Its totient is φ = 144297388569600.

The previous prime is 212454322355533. The next prime is 212454322355591. The reversal of 212454322355555 is 555553223454212.

It is not a de Polignac number, because 212454322355555 - 2⁶ = 212454322355491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212454322355497 and 212454322355506.

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 63 ways as a sum of consecutive naturals, for example, 12113242976 + ... + 12113260514.

It is an arithmetic number, because the mean of its divisors is an integer number (4596014338560).

Almost surely, 2^{212454322355555} is an apocalyptic number.

212454322355555 is a deficient number, since it is larger than the sum of its proper divisors (81690595312285).

212454322355555 is a wasteful number, since it uses less digits than its factorization.

212454322355555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22020.

The product of its digits is 36000000, while the sum is 53.

The spelling of 212454322355555 in words is "two hundred twelve trillion, four hundred fifty-four billion, three hundred twenty-two million, three hundred fifty-five thousand, five hundred fifty-five".