1121000010220 has 12 divisors (see below), whose sum is σ = 2354100021504. Its totient is φ = 448400004080.

The previous prime is 1121000010161. The next prime is 1121000010239. The reversal of 1121000010220 is 220100001211.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1121000010197 and 1121000010206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28025000236 + ... + 28025000275.

It is an arithmetic number, because the mean of its divisors is an integer number (196175001792).

Almost surely, 2^{1121000010220} is an apocalyptic number.

1121000010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121000010220 is an abundant number, since it is smaller than the sum of its proper divisors (1233100011284).

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

1121000010220 is a wasteful number, since it uses less digits than its factorization.

1121000010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56050000520 (or 56050000518 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1121000010220 its reverse (220100001211), we get a palindrome (1341100011431).

Subtracting from 1121000010220 its reverse (220100001211), we obtain a palindrome (900900009009).

The spelling of 1121000010220 in words is "one trillion, one hundred twenty-one billion, ten thousand, two hundred twenty".