110221021121 has 4 divisors (see below), whose sum is σ = 111616224000. Its totient is φ = 108825818244.

The previous prime is 110221021091. The next prime is 110221021133. The reversal of 110221021121 is 121120122011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110221021121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110221021096 and 110221021105.

It is not an unprimeable number, because it can be changed into a prime (110221021021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697601321 + ... + 697601478.

It is an arithmetic number, because the mean of its divisors is an integer number (27904056000).

Almost surely, 2^110221021121 is an apocalyptic number.

It is an amenable number.

110221021121 is a deficient number, since it is larger than the sum of its proper divisors (1395202879).

110221021121 is an equidigital number, since it uses as much as digits as its factorization.

110221021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395202878.

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

Adding to 110221021121 its reverse (121120122011), we get a palindrome (231341143132).

The spelling of 110221021121 in words is "one hundred ten billion, two hundred twenty-one million, twenty-one thousand, one hundred twenty-one".