21122102102110 has 32 divisors (see below), whose sum is σ = 38052854687232. Its totient is φ = 8441492428800.

The previous prime is 21122102102093. The next prime is 21122102102113. The reversal of 21122102102110 is 1120120122112.

It is a super-2 number, since 2×21122102102110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21122102102113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476226435 + ... + 476270785.

It is an arithmetic number, because the mean of its divisors is an integer number (1189151708976).

Almost surely, 2^{21122102102110} is an apocalyptic number.

21122102102110 is a deficient number, since it is larger than the sum of its proper divisors (16930752585122).

21122102102110 is a wasteful number, since it uses less digits than its factorization.

21122102102110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84708.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21122102102110 its reverse (1120120122112), we get a palindrome (22242222224222).

The spelling of 21122102102110 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred two million, one hundred two thousand, one hundred ten".