212320212286 has 64 divisors (see below), whose sum is σ = 404756545536. Its totient is φ = 81257904000.

The previous prime is 212320212263. The next prime is 212320212287. The reversal of 212320212286 is 682212023212.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212320212287) 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, 26699611 + ... + 26707561.

It is an arithmetic number, because the mean of its divisors is an integer number (6324321024).

Almost surely, 2^212320212286 is an apocalyptic number.

212320212286 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

212320212286 is a deficient number, since it is larger than the sum of its proper divisors (192436333250).

212320212286 is a wasteful number, since it uses less digits than its factorization.

212320212286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12737.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 212320212286 its reverse (682212023212), we get a palindrome (894532235498).

The spelling of 212320212286 in words is "two hundred twelve billion, three hundred twenty million, two hundred twelve thousand, two hundred eighty-six".