2220120 has 96 divisors (see below), whose sum is σ = 8255520. Its totient is φ = 506880.

The previous prime is 2220089. The next prime is 2220151. The reversal of 2220120 is 210222.

It is an interprime number because it is at equal distance from previous prime (2220089) and next prime (2220151).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2080 + ... + 2960.

It is an arithmetic number, because the mean of its divisors is an integer number (85995).

2^2220120 is an apocalyptic number.

2220120 is a gapful number since it is divisible by the number (20) 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 2220120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4127760).

2220120 is an abundant number, since it is smaller than the sum of its proper divisors (6035400).

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

2220120 is a wasteful number, since it uses less digits than its factorization.

2220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2220120 is about 1490.0067113943. The cubic root of 2220120 is about 130.4544254475.

Adding to 2220120 its reverse (210222), we get a palindrome (2430342).

The spelling of 2220120 in words is "two million, two hundred twenty thousand, one hundred twenty".