212021320222 has 8 divisors (see below), whose sum is σ = 336739743936. Its totient is φ = 99774738912.

The previous prime is 212021320219. The next prime is 212021320229. The reversal of 212021320222 is 222023120212.

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

It is a super-2 number, since 2×212021320222² (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 212021320222.

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 3 ways as a sum of consecutive naturals, for example, 3117960558 + ... + 3117960625.

It is an arithmetic number, because the mean of its divisors is an integer number (42092467992).

Almost surely, 2^212021320222 is an apocalyptic number.

212021320222 is a deficient number, since it is larger than the sum of its proper divisors (124718423714).

212021320222 is a wasteful number, since it uses less digits than its factorization.

212021320222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6235921202.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 212021320222 its reverse (222023120212), we get a palindrome (434044440434).

The spelling of 212021320222 in words is "two hundred twelve billion, twenty-one million, three hundred twenty thousand, two hundred twenty-two".