212030021222 has 8 divisors (see below), whose sum is σ = 318291391272. Its totient is φ = 105932890800.

The previous prime is 212030021149. The next prime is 212030021249. The reversal of 212030021222 is 222120030212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 212030021222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41056679 + ... + 41061842.

It is an arithmetic number, because the mean of its divisors is an integer number (39786423909).

Almost surely, 2^212030021222 is an apocalyptic number.

212030021222 is a deficient number, since it is larger than the sum of its proper divisors (106261370050).

212030021222 is a wasteful number, since it uses less digits than its factorization.

212030021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82119814.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 212030021222 its reverse (222120030212), we get a palindrome (434150051434).

The spelling of 212030021222 in words is "two hundred twelve billion, thirty million, twenty-one thousand, two hundred twenty-two".