212201221202010 has 24 divisors (see below), whose sum is σ = 551723175125460. Its totient is φ = 56586992320512.

The previous prime is 212201221201973. The next prime is 212201221202041. The reversal of 212201221202010 is 10202122102212.

It is a happy number.

212201221202010 is a `hidden beast` number, since 2 + 1 + 220 + 1 + 221 + 20 + 201 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 203543379860769 + 8657841341241 = 14266863^2 + 2942421^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1178895673255 + ... + 1178895673434.

Almost surely, 2^{212201221202010} is an apocalyptic number.

212201221202010 is an abundant number, since it is smaller than the sum of its proper divisors (339521953923450).

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

212201221202010 is a wasteful number, since it uses less digits than its factorization.

212201221202010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357791346702 (or 2357791346699 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212201221202010 its reverse (10202122102212), we get a palindrome (222403343304222).

The spelling of 212201221202010 in words is "two hundred twelve trillion, two hundred one billion, two hundred twenty-one million, two hundred two thousand, ten".