1120002201220 has 120 divisors (see below), whose sum is σ = 2745172776024. Its totient is φ = 383814563328.

The previous prime is 1120002201181. The next prime is 1120002201229. The reversal of 1120002201220 is 221022000211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 537491327044 + 582510874176 = 733138^2 + 763224^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1120002201220.

It is not an unprimeable number, because it can be changed into a prime (1120002201229) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 130273962 + ... + 130282558.

Almost surely, 2^{1120002201220} is an apocalyptic number.

1120002201220 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 1120002201220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1372586388012).

1120002201220 is an abundant number, since it is smaller than the sum of its proper divisors (1625170574804).

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

1120002201220 is an equidigital number, since it uses as much as digits as its factorization.

1120002201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11347 (or 11324 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1120002201220 its reverse (221022000211), we get a palindrome (1341024201431).

The spelling of 1120002201220 in words is "one trillion, one hundred twenty billion, two million, two hundred one thousand, two hundred twenty".