21101022210110 has 16 divisors (see below), whose sum is σ = 39207060623232. Its totient is φ = 8168137629600.

The previous prime is 21101022210089. The next prime is 21101022210113. The reversal of 21101022210110 is 1101222010112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101022210113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34033906481 + ... + 34033907100.

It is an arithmetic number, because the mean of its divisors is an integer number (2450441288952).

Almost surely, 2^{21101022210110} is an apocalyptic number.

21101022210110 is a deficient number, since it is larger than the sum of its proper divisors (18106038413122).

21101022210110 is a wasteful number, since it uses less digits than its factorization.

21101022210110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68067813619.

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

Adding to 21101022210110 its reverse (1101222010112), we get a palindrome (22202244220222).

The spelling of 21101022210110 in words is "twenty-one trillion, one hundred one billion, twenty-two million, two hundred ten thousand, one hundred ten".