220120032311220 has 48 divisors (see below), whose sum is σ = 616680605076480. Its totient is φ = 58665864368256.

The previous prime is 220120032311219. The next prime is 220120032311273. The reversal of 220120032311220 is 22113230021022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1025232852 + ... + 1025447531.

It is an arithmetic number, because the mean of its divisors is an integer number (12847512605760).

Almost surely, 2^{220120032311220} is an apocalyptic number.

220120032311220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220120032311220 is an abundant number, since it is smaller than the sum of its proper divisors (396560572765260).

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

220120032311220 is a wasteful number, since it uses less digits than its factorization.

220120032311220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050682184 (or 2050682182 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 220120032311220 its reverse (22113230021022), we get a palindrome (242233262332242).

The spelling of 220120032311220 in words is "two hundred twenty trillion, one hundred twenty billion, thirty-two million, three hundred eleven thousand, two hundred twenty".