110001121221020 has 24 divisors (see below), whose sum is σ = 231002858721264. Its totient is φ = 44000352458496.

The previous prime is 110001121220987. The next prime is 110001121221029. The reversal of 110001121221020 is 20122121100011.

It is a junction number, because it is equal to n+sod(n) for n = 110001121220986 and 110001121221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110001121221029) 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, 3779972 + ... + 15306548.

It is an arithmetic number, because the mean of its divisors is an integer number (9625119113386).

Almost surely, 2^{110001121221020} is an apocalyptic number.

110001121221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110001121221020 is an abundant number, since it is smaller than the sum of its proper divisors (121001737500244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

110001121221020 is a wasteful number, since it uses less digits than its factorization.

110001121221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12003749 (or 12003747 counting only the distinct ones).

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

Adding to 110001121221020 its reverse (20122121100011), we get a palindrome (130123242321031).

The spelling of 110001121221020 in words is "one hundred ten trillion, one billion, one hundred twenty-one million, two hundred twenty-one thousand, twenty".