110001011220 has 36 divisors (see below), whose sum is σ = 333669734580. Its totient is φ = 29333602944.

The previous prime is 110001011167. The next prime is 110001011261. The reversal of 110001011220 is 22110100011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73295815824 + 36705195396 = 270732^2 + 191586^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×110001011220³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305558185 + ... + 305558544.

Almost surely, 2^110001011220 is an apocalyptic number.

110001011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110001011220 is an abundant number, since it is smaller than the sum of its proper divisors (223668723360).

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

110001011220 is a wasteful number, since it uses less digits than its factorization.

110001011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611116744 (or 611116739 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 110001011220 its reverse (22110100011), we get a palindrome (132111111231).

The spelling of 110001011220 in words is "one hundred ten billion, one million, eleven thousand, two hundred twenty".