120221013220220 has 96 divisors (see below), whose sum is σ = 276989964007680. Its totient is φ = 43466866583040.

The previous prime is 120221013220213. The next prime is 120221013220223. The reversal of 120221013220220 is 22022310122021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 120221013220192 and 120221013220201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221013220223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309608432 + ... + 309996488.

It is an arithmetic number, because the mean of its divisors is an integer number (2885312125080).

Almost surely, 2^{120221013220220} is an apocalyptic number.

120221013220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120221013220220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138494982003840).

120221013220220 is an abundant number, since it is smaller than the sum of its proper divisors (156768950787460).

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

120221013220220 is a wasteful number, since it uses less digits than its factorization.

120221013220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396123 (or 396121 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 120221013220220 its reverse (22022310122021), we get a palindrome (142243323342241).

The spelling of 120221013220220 in words is "one hundred twenty trillion, two hundred twenty-one billion, thirteen million, two hundred twenty thousand, two hundred twenty".