212021320223 has 8 divisors (see below), whose sum is σ = 212662689792. Its totient is φ = 211380297336.

The previous prime is 212021320219. The next prime is 212021320229. The reversal of 212021320223 is 322023120212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212021320223 - 2² = 212021320219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212021320195 and 212021320204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021320229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1165586 + ... + 1335152.

It is an arithmetic number, because the mean of its divisors is an integer number (26582836224).

Almost surely, 2^212021320223 is an apocalyptic number.

212021320223 is a deficient number, since it is larger than the sum of its proper divisors (641369569).

212021320223 is a wasteful number, since it uses less digits than its factorization.

212021320223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173341.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212021320223 its reverse (322023120212), we get a palindrome (534044440435).

The spelling of 212021320223 in words is "two hundred twelve billion, twenty-one million, three hundred twenty thousand, two hundred twenty-three".