1120000001220 has 72 divisors (see below), whose sum is σ = 3469617051264. Its totient is φ = 292312054848.

The previous prime is 1120000001203. The next prime is 1120000001273. The reversal of 1120000001220 is 221000000211.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66185394 + ... + 66202313.

It is an arithmetic number, because the mean of its divisors is an integer number (48189125712).

Almost surely, 2^{1120000001220} is an apocalyptic number.

1120000001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120000001220 is an abundant number, since it is smaller than the sum of its proper divisors (2349617050044).

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

1120000001220 is a wasteful number, since it uses less digits than its factorization.

1120000001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132387769 (or 132387764 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1120000001220 its reverse (221000000211), we get a palindrome (1341000001431).

The spelling of 1120000001220 in words is "one trillion, one hundred twenty billion, one thousand, two hundred twenty".