212612622 has 16 divisors (see below), whose sum is σ = 447605760. Its totient is φ = 67140792.

The previous prime is 212612581. The next prime is 212612623. The reversal of 212612622 is 226216212.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 212612592 and 212612601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212612623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932398 + ... + 932625.

It is an arithmetic number, because the mean of its divisors is an integer number (27975360).

Almost surely, 2^212612622 is an apocalyptic number.

212612622 is an abundant number, since it is smaller than the sum of its proper divisors (234993138).

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

212612622 is a wasteful number, since it uses less digits than its factorization.

212612622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865047.

The product of its digits is 1152, while the sum is 24.

The square root of 212612622 is about 14581.2421281590. The cubic root of 212612622 is about 596.8469988856.

Adding to 212612622 its reverse (226216212), we get a palindrome (438828834).

It can be divided in two parts, 21261262 and 2, that multiplied together give a palindrome (42522524).

The spelling of 212612622 in words is "two hundred twelve million, six hundred twelve thousand, six hundred twenty-two".