1220221101120 has 112 divisors (see below), whose sum is σ = 4427659448448. Its totient is φ = 278907678720.

The previous prime is 1220221101103. The next prime is 1220221101167. The reversal of 1220221101120 is 211011220221.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1220221101120.

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, 90783541 + ... + 90796980.

Almost surely, 2^{1220221101120} is an apocalyptic number.

1220221101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220221101120 is an abundant number, since it is smaller than the sum of its proper divisors (3207438347328).

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

1220221101120 is a wasteful number, since it uses less digits than its factorization.

1220221101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181580548 (or 181580538 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1220221101120 its reverse (211011220221), we get a palindrome (1431232321341).

The spelling of 1220221101120 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, one hundred one thousand, one hundred twenty".