221210202010 has 32 divisors (see below), whose sum is σ = 474846250752. Its totient is φ = 72545953920.

The previous prime is 221210202001. The next prime is 221210202067. The reversal of 221210202010 is 10202012122.

It is a happy number.

221210202010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68697211 + ... + 68700430.

It is an arithmetic number, because the mean of its divisors is an integer number (14838945336).

Almost surely, 2^221210202010 is an apocalyptic number.

221210202010 is an abundant number, since it is smaller than the sum of its proper divisors (253636048742).

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

221210202010 is a wasteful number, since it uses less digits than its factorization.

221210202010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137397678.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221210202010 its reverse (10202012122), we get a palindrome (231412214132).

The spelling of 221210202010 in words is "two hundred twenty-one billion, two hundred ten million, two hundred two thousand, ten".