1220000424120 has 384 divisors, whose sum is σ = 4063234855680. Its totient is φ = 317399040000.

The previous prime is 1220000424119. The next prime is 1220000424143. The reversal of 1220000424120 is 214240000221.

1220000424120 is a `hidden beast` number, since 1 + 220 + 0 + 0 + 0 + 424 + 1 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1220000424093 and 1220000424102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 991063905 + ... + 991065135.

It is an arithmetic number, because the mean of its divisors is an integer number (10581340770).

Almost surely, 2^{1220000424120} is an apocalyptic number.

1220000424120 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 1220000424120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2031617427840).

1220000424120 is an abundant number, since it is smaller than the sum of its proper divisors (2843234431560).

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

1220000424120 is a wasteful number, since it uses less digits than its factorization.

1220000424120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727 (or 1720 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1220000424120 its reverse (214240000221), we get a palindrome (1434240424341).

The spelling of 1220000424120 in words is "one trillion, two hundred twenty billion, four hundred twenty-four thousand, one hundred twenty".