2141220 has 48 divisors (see below), whose sum is σ = 6064128. Its totient is φ = 564480.

The previous prime is 2141219. The next prime is 2141257. The reversal of 2141220 is 221412.

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 = 2141196 and 2141205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7480 + ... + 7760.

It is an arithmetic number, because the mean of its divisors is an integer number (126336).

2^2141220 is an apocalyptic number.

2141220 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 2141220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3032064).

2141220 is an abundant number, since it is smaller than the sum of its proper divisors (3922908).

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

2141220 is a wasteful number, since it uses less digits than its factorization.

2141220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 418 counting only the distinct ones).

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

The square root of 2141220 is about 1463.2908118347. The cubic root of 2141220 is about 128.8903581327.

Adding to 2141220 its reverse (221412), we get a palindrome (2362632).

The spelling of 2141220 in words is "two million, one hundred forty-one thousand, two hundred twenty".