120001022220 has 96 divisors (see below), whose sum is σ = 356251392000. Its totient is φ = 30076959744.

The previous prime is 120001022201. The next prime is 120001022231. The reversal of 120001022220 is 22220100021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 120001022196 and 120001022205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 674181 + ... + 833379.

It is an arithmetic number, because the mean of its divisors is an integer number (3710952000).

Almost surely, 2^120001022220 is an apocalyptic number.

120001022220 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 120001022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178125696000).

120001022220 is an abundant number, since it is smaller than the sum of its proper divisors (236250369780).

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

120001022220 is a wasteful number, since it uses less digits than its factorization.

120001022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159967 (or 159965 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 120001022220 its reverse (22220100021), we get a palindrome (142221122241).

The spelling of 120001022220 in words is "one hundred twenty billion, one million, twenty-two thousand, two hundred twenty".