110000021021221 has 16 divisors (see below), whose sum is σ = 114346314371520. Its totient is φ = 105739868465280.

The previous prime is 110000021021213. The next prime is 110000021021269. The reversal of 110000021021221 is 122120120000011.

It is not a de Polignac number, because 110000021021221 - 2³ = 110000021021213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110000021021291) 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, 42061011 + ... + 44599648.

It is an arithmetic number, because the mean of its divisors is an integer number (7146644648220).

Almost surely, 2^{110000021021221} is an apocalyptic number.

It is an amenable number.

110000021021221 is a deficient number, since it is larger than the sum of its proper divisors (4346293350299).

110000021021221 is an equidigital number, since it uses as much as digits as its factorization.

110000021021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86661156.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 110000021021221 its reverse (122120120000011), we get a palindrome (232120141021232).

The spelling of 110000021021221 in words is "one hundred ten trillion, twenty-one million, twenty-one thousand, two hundred twenty-one".