2211420 has 24 divisors (see below), whose sum is σ = 6192144. Its totient is φ = 589696.

The previous prime is 2211413. The next prime is 2211439. The reversal of 2211420 is 241122.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2211396 and 2211405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18369 + ... + 18488.

It is an arithmetic number, because the mean of its divisors is an integer number (258006).

2^2211420 is an apocalyptic number.

2211420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211420 is an abundant number, since it is smaller than the sum of its proper divisors (3980724).

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

2211420 is a wasteful number, since it uses less digits than its factorization.

2211420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36869 (or 36867 counting only the distinct ones).

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

The square root of 2211420 is about 1487.0843957220. The cubic root of 2211420 is about 130.2837981460.

Adding to 2211420 its reverse (241122), we get a palindrome (2452542).

The spelling of 2211420 in words is "two million, two hundred eleven thousand, four hundred twenty".