221012210210 has 32 divisors (see below), whose sum is σ = 456829070400. Its totient is φ = 76138176960.

The previous prime is 221012210147. The next prime is 221012210231. The reversal of 221012210210 is 12012210122.

221012210210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 52871645 + ... + 52875824.

It is an arithmetic number, because the mean of its divisors is an integer number (14275908450).

Almost surely, 2^221012210210 is an apocalyptic number.

221012210210 is an abundant number, since it is smaller than the sum of its proper divisors (235816860190).

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

221012210210 is a wasteful number, since it uses less digits than its factorization.

221012210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105747506.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221012210210 its reverse (12012210122), we get a palindrome (233024420332).

The spelling of 221012210210 in words is "two hundred twenty-one billion, twelve million, two hundred ten thousand, two hundred ten".