20100221210110 has 8 divisors (see below), whose sum is σ = 36180398178216. Its totient is φ = 8040088484040.

The previous prime is 20100221210077. The next prime is 20100221210207. The reversal of 20100221210110 is 1101212200102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005011060496 + ... + 1005011060515.

It is an arithmetic number, because the mean of its divisors is an integer number (4522549772277).

Almost surely, 2^{20100221210110} is an apocalyptic number.

20100221210110 is a deficient number, since it is larger than the sum of its proper divisors (16080176968106).

20100221210110 is a wasteful number, since it uses less digits than its factorization.

20100221210110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010022121018.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20100221210110 its reverse (1101212200102), we get a palindrome (21201433410212).

The spelling of 20100221210110 in words is "twenty trillion, one hundred billion, two hundred twenty-one million, two hundred ten thousand, one hundred ten".