212020312986 has 24 divisors (see below), whose sum is σ = 470581671924. Its totient is φ = 68949695040.

The previous prime is 212020312967. The next prime is 212020312997. The reversal of 212020312986 is 689213020212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 211306621761 + 713691225 = 459681^2 + 26715^2 .

It is a super-2 number, since 2×212020312986² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212020312986.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143644461 + ... + 143645936.

Almost surely, 2^212020312986 is an apocalyptic number.

212020312986 is an abundant number, since it is smaller than the sum of its proper divisors (258561358938).

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

212020312986 is a wasteful number, since it uses less digits than its factorization.

212020312986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287290446 (or 287290443 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 212020312986 in words is "two hundred twelve billion, twenty million, three hundred twelve thousand, nine hundred eighty-six".