1220120032 has 24 divisors (see below), whose sum is σ = 2402977752. Its totient is φ = 609840000.

The previous prime is 1220120023. The next prime is 1220120053. The reversal of 1220120032 is 2300210221.

It is a junction number, because it is equal to n+sod(n) for n = 1220119994 and 1220120021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118282 + ... + 128182.

It is an arithmetic number, because the mean of its divisors is an integer number (100124073).

Almost surely, 2^1220120032 is an apocalyptic number.

It is an amenable number.

1220120032 is a deficient number, since it is larger than the sum of its proper divisors (1182857720).

1220120032 is an equidigital number, since it uses as much as digits as its factorization.

1220120032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13762 (or 13754 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1220120032 is about 34930.2166039663. The cubic root of 1220120032 is about 1068.5647721037.

Adding to 1220120032 its reverse (2300210221), we get a palindrome (3520330253).

The spelling of 1220120032 in words is "one billion, two hundred twenty million, one hundred twenty thousand, thirty-two".