1110111020221 has 16 divisors (see below), whose sum is σ = 1290213220608. Its totient is φ = 935471376000.

The previous prime is 1110111020173. The next prime is 1110111020231. The reversal of 1110111020221 is 1220201110111.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1110111020221 is a prime.

It is a super-2 number, since 2×1110111020221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110111020231) 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, 3333730 + ... + 3651571.

It is an arithmetic number, because the mean of its divisors is an integer number (80638326288).

Almost surely, 2^{1110111020221} is an apocalyptic number.

It is an amenable number.

1110111020221 is a deficient number, since it is larger than the sum of its proper divisors (180102200387).

1110111020221 is an equidigital number, since it uses as much as digits as its factorization.

1110111020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6985692.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1110111020221 its reverse (1220201110111), we get a palindrome (2330312130332).

The spelling of 1110111020221 in words is "one trillion, one hundred ten billion, one hundred eleven million, twenty thousand, two hundred twenty-one".