212010026285 has 4 divisors (see below), whose sum is σ = 254412031548. Its totient is φ = 169608021024.

The previous prime is 212010026279. The next prime is 212010026287. The reversal of 212010026285 is 582620010212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 136540596196 + 75469430089 = 369514^2 + 274717^2 .

It is a cyclic number.

It is not a de Polignac number, because 212010026285 - 2¹⁶ = 212009960749 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 (212010026287) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21201002624 + ... + 21201002633.

It is an arithmetic number, because the mean of its divisors is an integer number (63603007887).

Almost surely, 2^212010026285 is an apocalyptic number.

It is an amenable number.

212010026285 is a deficient number, since it is larger than the sum of its proper divisors (42402005263).

212010026285 is an equidigital number, since it uses as much as digits as its factorization.

212010026285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42402005262.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 212010026285 its reverse (582620010212), we get a palindrome (794630036497).

The spelling of 212010026285 in words is "two hundred twelve billion, ten million, twenty-six thousand, two hundred eighty-five".