1121200230220 has 96 divisors (see below), whose sum is σ = 2720646891648. Its totient is φ = 380165087232.

The previous prime is 1121200230217. The next prime is 1121200230259. The reversal of 1121200230220 is 220320021211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1121200230194 and 1121200230203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18615274 + ... + 18675406.

It is an arithmetic number, because the mean of its divisors is an integer number (28340071788).

Almost surely, 2^{1121200230220} is an apocalyptic number.

1121200230220 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 1121200230220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360323445824).

1121200230220 is an abundant number, since it is smaller than the sum of its proper divisors (1599446661428).

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

1121200230220 is a wasteful number, since it uses less digits than its factorization.

1121200230220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61619 (or 61617 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1121200230220 its reverse (220320021211), we get a palindrome (1341520251431).

The spelling of 1121200230220 in words is "one trillion, one hundred twenty-one billion, two hundred million, two hundred thirty thousand, two hundred twenty".