1220011110120 has 64 divisors (see below), whose sum is σ = 3992763637440. Its totient is φ = 295760268800.

The previous prime is 1220011110103. The next prime is 1220011110127. The reversal of 1220011110120 is 210111100221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1220011110096 and 1220011110105.

It is not an unprimeable number, because it can be changed into a prime (1220011110127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462124101 + ... + 462126740.

It is an arithmetic number, because the mean of its divisors is an integer number (62386931835).

Almost surely, 2^{1220011110120} is an apocalyptic number.

1220011110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220011110120 is an abundant number, since it is smaller than the sum of its proper divisors (2772752527320).

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

1220011110120 is a wasteful number, since it uses less digits than its factorization.

1220011110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924250866 (or 924250862 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1220011110120 its reverse (210111100221), we get a palindrome (1430122210341).

The spelling of 1220011110120 in words is "one trillion, two hundred twenty billion, eleven million, one hundred ten thousand, one hundred twenty".