212221202110 has 8 divisors (see below), whose sum is σ = 381998163816. Its totient is φ = 84888480840.

The previous prime is 212221202051. The next prime is 212221202111. The reversal of 212221202110 is 11202122212.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221202111) 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, 10611060096 + ... + 10611060115.

It is an arithmetic number, because the mean of its divisors is an integer number (47749770477).

Almost surely, 2^212221202110 is an apocalyptic number.

212221202110 is a deficient number, since it is larger than the sum of its proper divisors (169776961706).

212221202110 is a wasteful number, since it uses less digits than its factorization.

212221202110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21222120218.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212221202110 its reverse (11202122212), we get a palindrome (223423324322).

The spelling of 212221202110 in words is "two hundred twelve billion, two hundred twenty-one million, two hundred two thousand, one hundred ten".