212843288042 has 32 divisors (see below), whose sum is σ = 418994311680. Its totient is φ = 78561431280.

The previous prime is 212843288029. The next prime is 212843288111. The reversal of 212843288042 is 240882348212.

It is a junction number, because it is equal to n+sod(n) for n = 212843287984 and 212843288002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36368108 + ... + 36373959.

It is an arithmetic number, because the mean of its divisors is an integer number (13093572240).

Almost surely, 2^212843288042 is an apocalyptic number.

212843288042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212843288042 is a deficient number, since it is larger than the sum of its proper divisors (206151023638).

212843288042 is a wasteful number, since it uses less digits than its factorization.

212843288042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72742106.

The product of its (nonzero) digits is 393216, while the sum is 44.

The spelling of 212843288042 in words is "two hundred twelve billion, eight hundred forty-three million, two hundred eighty-eight thousand, forty-two".