110020220021221 has 8 divisors (see below), whose sum is σ = 114112489380984. Its totient is φ = 105986832235200.

The previous prime is 110020220021137. The next prime is 110020220021269. The reversal of 110020220021221 is 122120022020011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 83101711248196 + 26918508773025 = 9116014^2 + 5188305^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 110020220021221 - 2¹⁹ = 110020219496933 is a prime.

It is a super-3 number, since 3×110020220021221³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110020220021195 and 110020220021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110020220028221) 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, 14720389630 + ... + 14720397103.

It is an arithmetic number, because the mean of its divisors is an integer number (14264061172623).

Almost surely, 2^{110020220021221} is an apocalyptic number.

It is an amenable number.

110020220021221 is a deficient number, since it is larger than the sum of its proper divisors (4092269359763).

110020220021221 is a wasteful number, since it uses less digits than its factorization.

110020220021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29440786871.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 110020220021221 its reverse (122120022020011), we get a palindrome (232140242041232).

The spelling of 110020220021221 in words is "one hundred ten trillion, twenty billion, two hundred twenty million, twenty-one thousand, two hundred twenty-one".