212221103022 has 24 divisors (see below), whose sum is σ = 484013042760. Its totient is φ = 67017190320.

The previous prime is 212221103009. The next prime is 212221103051. The reversal of 212221103022 is 220301122212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212221102986 and 212221103004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 310264429 + ... + 310265112.

It is an arithmetic number, because the mean of its divisors is an integer number (20167210115).

Almost surely, 2^212221103022 is an apocalyptic number.

212221103022 is an abundant number, since it is smaller than the sum of its proper divisors (271791939738).

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

212221103022 is a wasteful number, since it uses less digits than its factorization.

212221103022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620529568 (or 620529565 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212221103022 its reverse (220301122212), we get a palindrome (432522225234).

The spelling of 212221103022 in words is "two hundred twelve billion, two hundred twenty-one million, one hundred three thousand, twenty-two".