21210010221110 has 16 divisors (see below), whose sum is σ = 38178103588416. Its totient is φ = 8483985157248.

The previous prime is 21210010221109. The next prime is 21210010221137. The reversal of 21210010221110 is 1112201001212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2896547 + ... + 7128113.

It is an arithmetic number, because the mean of its divisors is an integer number (2386131474276).

Almost surely, 2^{21210010221110} is an apocalyptic number.

21210010221110 is a deficient number, since it is larger than the sum of its proper divisors (16968093367306).

21210010221110 is a wasteful number, since it uses less digits than its factorization.

21210010221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4732807.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21210010221110 its reverse (1112201001212), we get a palindrome (22322211222322).

It can be divided in two parts, 212100102 and 21110, that added together give a palindrome (212121212).

The spelling of 21210010221110 in words is "twenty-one trillion, two hundred ten billion, ten million, two hundred twenty-one thousand, one hundred ten".