110221102121020 has 48 divisors (see below), whose sum is σ = 252513604224000. Its totient is φ = 40079277062720.

The previous prime is 110221102120973. The next prime is 110221102121033. The reversal of 110221102121020 is 20121201122011.

It is a junction number, because it is equal to n+sod(n) for n = 110221102120985 and 110221102121003.

It is a congruent number.

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, 861681 + ... + 14872279.

It is an arithmetic number, because the mean of its divisors is an integer number (5260700088000).

Almost surely, 2^{110221102121020} is an apocalyptic number.

110221102121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110221102121020 is an abundant number, since it is smaller than the sum of its proper divisors (142292502102980).

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

110221102121020 is a wasteful number, since it uses less digits than its factorization.

110221102121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14046378 (or 14046376 counting only the distinct ones).

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

Adding to 110221102121020 its reverse (20121201122011), we get a palindrome (130342303243031).

Subtracting from 110221102121020 its reverse (20121201122011), we obtain a palindrome (90099900999009).

The spelling of 110221102121020 in words is "one hundred ten trillion, two hundred twenty-one billion, one hundred two million, one hundred twenty-one thousand, twenty".