110001211021220 has 24 divisors (see below), whose sum is σ = 231087689791224. Its totient is φ = 43984265999616.

The previous prime is 110001211021159. The next prime is 110001211021259. The reversal of 110001211021220 is 22120112100011.

It can be written as a sum of positive squares in 4 ways, for example, as 57154446723136 + 52846764298084 = 7560056^2 + 7269578^2 .

It is a super-2 number, since 2×110001211021220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 110001211021195 and 110001211021204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1013594939 + ... + 1013703458.

It is an arithmetic number, because the mean of its divisors is an integer number (9628653741301).

Almost surely, 2^{110001211021220} is an apocalyptic number.

110001211021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110001211021220 is an abundant number, since it is smaller than the sum of its proper divisors (121086478770004).

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

110001211021220 is a wasteful number, since it uses less digits than its factorization.

110001211021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027301119 (or 2027301117 counting only the distinct ones).

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

Adding to 110001211021220 its reverse (22120112100011), we get a palindrome (132121323121231).

The spelling of 110001211021220 in words is "one hundred ten trillion, one billion, two hundred eleven million, twenty-one thousand, two hundred twenty".