220120210112220 has 144 divisors (see below), whose sum is σ = 771244714906848. Its totient is φ = 50223506042880.

The previous prime is 220120210112207. The next prime is 220120210112279. The reversal of 220120210112220 is 22211012021022.

It is a happy number.

220120210112220 is a `hidden beast` number, since 2 + 2 + 0 + 120 + 210 + 112 + 220 = 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 = 220120210112193 and 220120210112202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3269725849 + ... + 3269793168.

It is an arithmetic number, because the mean of its divisors is an integer number (5355866075742).

Almost surely, 2^{220120210112220} is an apocalyptic number.

220120210112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220120210112220 is an abundant number, since it is smaller than the sum of its proper divisors (551124504794628).

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

220120210112220 is a wasteful number, since it uses less digits than its factorization.

220120210112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6539519060 (or 6539519055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220120210112220 its reverse (22211012021022), we get a palindrome (242331222133242).

The spelling of 220120210112220 in words is "two hundred twenty trillion, one hundred twenty billion, two hundred ten million, one hundred twelve thousand, two hundred twenty".