212206026 has 16 divisors (see below), whose sum is σ = 435883104. Its totient is φ = 68823504.

The previous prime is 212205997. The next prime is 212206031. The reversal of 212206026 is 620602212.

It is a junction number, because it is equal to n+sod(n) for n = 212205993 and 212206011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477720 + ... + 478163.

It is an arithmetic number, because the mean of its divisors is an integer number (27242694).

Almost surely, 2^212206026 is an apocalyptic number.

212206026 is an abundant number, since it is smaller than the sum of its proper divisors (223677078).

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

212206026 is a wasteful number, since it uses less digits than its factorization.

212206026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955925.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 212206026 is about 14567.2930223841. The cubic root of 212206026 is about 596.4662901259.

Adding to 212206026 its reverse (620602212), we get a palindrome (832808238).

The spelling of 212206026 in words is "two hundred twelve million, two hundred six thousand, twenty-six".