110001200021220 has 96 divisors (see below), whose sum is σ = 311043259957248. Its totient is φ = 29044229864832.

The previous prime is 110001200021213. The next prime is 110001200021227. The reversal of 110001200021220 is 22120002100011.

It is an interprime number because it is at equal distance from previous prime (110001200021213) and next prime (110001200021227).

It is a super-2 number, since 2×110001200021220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 110001200021196 and 110001200021205.

It is not an unprimeable number, because it can be changed into a prime (110001200021227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37438077 + ... + 40269243.

It is an arithmetic number, because the mean of its divisors is an integer number (3240033957888).

Almost surely, 2^{110001200021220} is an apocalyptic number.

110001200021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 110001200021220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155521629978624).

110001200021220 is an abundant number, since it is smaller than the sum of its proper divisors (201042059936028).

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

110001200021220 is a wasteful number, since it uses less digits than its factorization.

110001200021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837569 (or 2837567 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 110001200021220 its reverse (22120002100011), we get a palindrome (132121202121231).

The spelling of 110001200021220 in words is "one hundred ten trillion, one billion, two hundred million, twenty-one thousand, two hundred twenty".