212221101220210 has 16 divisors (see below), whose sum is σ = 382003188771456. Its totient is φ = 84887283471408.

The previous prime is 212221101220201. The next prime is 212221101220237. The reversal of 212221101220210 is 12022101122212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143856522 + ... + 145324261.

It is an arithmetic number, because the mean of its divisors is an integer number (23875199298216).

Almost surely, 2^{212221101220210} is an apocalyptic number.

212221101220210 is a deficient number, since it is larger than the sum of its proper divisors (169782087551246).

212221101220210 is a wasteful number, since it uses less digits than its factorization.

212221101220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289254177.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212221101220210 its reverse (12022101122212), we get a palindrome (224243202342422).

The spelling of 212221101220210 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred one million, two hundred twenty thousand, two hundred ten".