221210002122010 has 64 divisors (see below), whose sum is σ = 450890474448384. Its totient is φ = 77437879948800.

The previous prime is 221210002121971. The next prime is 221210002122013. The reversal of 221210002122010 is 10221200012122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221210002122013) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 350399667 + ... + 351030406.

It is an arithmetic number, because the mean of its divisors is an integer number (7045163663256).

Almost surely, 2^{221210002122010} is an apocalyptic number.

221210002122010 is an abundant number, since it is smaller than the sum of its proper divisors (229680472326374).

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

221210002122010 is a wasteful number, since it uses less digits than its factorization.

221210002122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701430199.

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

Adding to 221210002122010 its reverse (10221200012122), we get a palindrome (231431202134132).

The spelling of 221210002122010 in words is "two hundred twenty-one trillion, two hundred ten billion, two million, one hundred twenty-two thousand, ten".