221200210202010 has 64 divisors (see below), whose sum is σ = 571719629859840. Its totient is φ = 54449076464640.

The previous prime is 221200210201939. The next prime is 221200210202051. The reversal of 221200210202010 is 10202012002122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119450370 + ... + 121288050.

It is an arithmetic number, because the mean of its divisors is an integer number (8933119216560).

Almost surely, 2^{221200210202010} is an apocalyptic number.

221200210202010 is an abundant number, since it is smaller than the sum of its proper divisors (350519419657830).

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

221200210202010 is a wasteful number, since it uses less digits than its factorization.

221200210202010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146343.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221200210202010 its reverse (10202012002122), we get a palindrome (231402222204132).

The spelling of 221200210202010 in words is "two hundred twenty-one trillion, two hundred billion, two hundred ten million, two hundred two thousand, ten".