2221350 has 48 divisors (see below), whose sum is σ = 5624640. Its totient is φ = 580000.

The previous prime is 2221343. The next prime is 2221379. The reversal of 2221350 is 531222.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 8725 + ... + 8975.

It is an arithmetic number, because the mean of its divisors is an integer number (117180).

2^2221350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2812320).

2221350 is an abundant number, since it is smaller than the sum of its proper divisors (3403290).

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

2221350 is a wasteful number, since it uses less digits than its factorization.

2221350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2221350 is about 1490.4194040605. The cubic root of 2221350 is about 130.4785126320.

Adding to 2221350 its reverse (531222), we get a palindrome (2752572).

The spelling of 2221350 in words is "two million, two hundred twenty-one thousand, three hundred fifty".