212021348610568 has 128 divisors (see below), whose sum is σ = 462389289834240. Its totient is φ = 89258712192000.

The previous prime is 212021348610551. The next prime is 212021348610581. The reversal of 212021348610568 is 865016843120212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19322089530 + ... + 19322100502.

It is an arithmetic number, because the mean of its divisors is an integer number (3612416326830).

Almost surely, 2^{212021348610568} is an apocalyptic number.

212021348610568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212021348610568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231194644917120).

212021348610568 is an abundant number, since it is smaller than the sum of its proper divisors (250367941223672).

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

212021348610568 is a wasteful number, since it uses less digits than its factorization.

212021348610568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17999 (or 17995 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 212021348610568 in words is "two hundred twelve trillion, twenty-one billion, three hundred forty-eight million, six hundred ten thousand, five hundred sixty-eight".