212221102121222 has 8 divisors (see below), whose sum is σ = 319022177376672. Its totient is φ = 105880376329000.

The previous prime is 212221102121177. The next prime is 212221102121233. The reversal of 212221102121222 is 222121201122212.

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

It is a super-2 number, since 2×212221102121222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115087364654 + ... + 115087366497.

It is an arithmetic number, because the mean of its divisors is an integer number (39877772172084).

Almost surely, 2^{212221102121222} is an apocalyptic number.

212221102121222 is a deficient number, since it is larger than the sum of its proper divisors (106801075255450).

212221102121222 is a wasteful number, since it uses less digits than its factorization.

212221102121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230174731614.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 212221102121222 its reverse (222121201122212), we get a palindrome (434342303243434).

The spelling of 212221102121222 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred two million, one hundred twenty-one thousand, two hundred twenty-two".