1121113033220 has 12 divisors (see below), whose sum is σ = 2354337369804. Its totient is φ = 448445213280.

The previous prime is 1121113033217. The next prime is 1121113033241. The reversal of 1121113033220 is 223303111211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 274477496836 + 846635536384 = 523906^2 + 920128^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 56055651661 = 1121113033220 / (1 + 1 + 2 + 1 + 1 + 1 + 3 + 0 + 3 + 3 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1121113033192 and 1121113033201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28027825811 + ... + 28027825850.

It is an arithmetic number, because the mean of its divisors is an integer number (196194780817).

Almost surely, 2^{1121113033220} is an apocalyptic number.

1121113033220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121113033220 is an abundant number, since it is smaller than the sum of its proper divisors (1233224336584).

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

1121113033220 is a wasteful number, since it uses less digits than its factorization.

1121113033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56055651670 (or 56055651668 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1121113033220 its reverse (223303111211), we get a palindrome (1344416144431).

The spelling of 1121113033220 in words is "one trillion, one hundred twenty-one billion, one hundred thirteen million, thirty-three thousand, two hundred twenty".