1121330210220 has 216 divisors, whose sum is σ = 3777244441152. Its totient is φ = 269034670080.

The previous prime is 1121330210179. The next prime is 1121330210267. The reversal of 1121330210220 is 220120331211.

1121330210220 is a `hidden beast` number, since 1 + 121 + 330 + 210 + 2 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1121330210193 and 1121330210202.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1847277 + ... + 2378043.

Almost surely, 2^{1121330210220} is an apocalyptic number.

1121330210220 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 1121330210220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1888622220576).

1121330210220 is an abundant number, since it is smaller than the sum of its proper divisors (2655914230932).

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

1121330210220 is a wasteful number, since it uses less digits than its factorization.

1121330210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530901 (or 530885 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1121330210220 its reverse (220120331211), we get a palindrome (1341450541431).

The spelling of 1121330210220 in words is "one trillion, one hundred twenty-one billion, three hundred thirty million, two hundred ten thousand, two hundred twenty".