1112120221000 has 64 divisors (see below), whose sum is σ = 2606796017280. Its totient is φ = 444090020800.

The previous prime is 1112120220931. The next prime is 1112120221021. The reversal of 1112120221000 is 1220212111.

It is a super-2 number, since 2×1112120221000² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360292 + ... + 1534291.

It is an arithmetic number, because the mean of its divisors is an integer number (40731187770).

Almost surely, 2^{1112120221000} is an apocalyptic number.

1112120221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112120221000 is an abundant number, since it is smaller than the sum of its proper divisors (1494675796280).

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

1112120221000 is a wasteful number, since it uses less digits than its factorization.

1112120221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895191 (or 1895177 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1112120221000 its reverse (1220212111), we get a palindrome (1113340433111).

The spelling of 1112120221000 in words is "one trillion, one hundred twelve billion, one hundred twenty million, two hundred twenty-one thousand".