212010513426 has 20 divisors (see below), whose sum is σ = 475060595262. Its totient is φ = 70670171088.

The previous prime is 212010513419. The next prime is 212010513427. The reversal of 212010513426 is 624315010212.

212010513426 is a `hidden beast` number, since 2 + 120 + 1 + 0 + 513 + 4 + 26 = 666.

212010513426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 154762773201 + 57247740225 = 393399^2 + 239265^2 .

It is a super-2 number, since 2×212010513426² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 212010513426.

It is not an unprimeable number, because it can be changed into a prime (212010513427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 654353275 + ... + 654353598.

Almost surely, 2^212010513426 is an apocalyptic number.

212010513426 is an abundant number, since it is smaller than the sum of its proper divisors (263050081836).

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

212010513426 is a wasteful number, since it uses less digits than its factorization.

212010513426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308706887 (or 1308706878 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 212010513426 its reverse (624315010212), we get a palindrome (836325523638).

The spelling of 212010513426 in words is "two hundred twelve billion, ten million, five hundred thirteen thousand, four hundred twenty-six".