1210220221120 has 56 divisors (see below), whose sum is σ = 2884237348608. Its totient is φ = 483684864000.

The previous prime is 1210220221099. The next prime is 1210220221187. The reversal of 1210220221120 is 211220220121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1210220221094 and 1210220221103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1190176 + ... + 1958815.

It is an arithmetic number, because the mean of its divisors is an integer number (51504238368).

Almost surely, 2^{1210220221120} is an apocalyptic number.

1210220221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210220221120 is an abundant number, since it is smaller than the sum of its proper divisors (1674017127488).

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

1210220221120 is a wasteful number, since it uses less digits than its factorization.

1210220221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150209 (or 3150199 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1210220221120 its reverse (211220220121), we get a palindrome (1421440441241).

Subtracting from 1210220221120 its reverse (211220220121), we obtain a palindrome (999000000999).

The spelling of 1210220221120 in words is "one trillion, two hundred ten billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twenty".