110210021221121 has 4 divisors (see below), whose sum is σ = 114010366780500. Its totient is φ = 106409675661744.

The previous prime is 110210021221057. The next prime is 110210021221123. The reversal of 110210021221121 is 121122120012011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91497164122225 + 18712857098896 = 9565415^2 + 4325836^2 .

It is a cyclic number.

It is not a de Polignac number, because 110210021221121 - 2⁶ = 110210021221057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 110210021221121.

It is not an unprimeable number, because it can be changed into a prime (110210021221123) 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, 1900172779646 + ... + 1900172779703.

It is an arithmetic number, because the mean of its divisors is an integer number (28502591695125).

Almost surely, 2^{110210021221121} is an apocalyptic number.

It is an amenable number.

110210021221121 is a deficient number, since it is larger than the sum of its proper divisors (3800345559379).

110210021221121 is an equidigital number, since it uses as much as digits as its factorization.

110210021221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800345559378.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 110210021221121 its reverse (121122120012011), we get a palindrome (231332141233132).

The spelling of 110210021221121 in words is "one hundred ten trillion, two hundred ten billion, twenty-one million, two hundred twenty-one thousand, one hundred twenty-one".