2221254 has 72 divisors (see below), whose sum is σ = 5938608. Its totient is φ = 587520.

The previous prime is 2221253. The next prime is 2221259. The reversal of 2221254 is 4521222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221253) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 36384 + ... + 36444.

2^2221254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2969304).

2221254 is an abundant number, since it is smaller than the sum of its proper divisors (3717354).

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

2221254 is a wasteful number, since it uses less digits than its factorization.

2221254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 90 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 2221254 is about 1490.3871980127. The cubic root of 2221254 is about 130.4766329766.

Adding to 2221254 its reverse (4521222), we get a palindrome (6742476).

Subtracting 2221254 from its reverse (4521222), we obtain a cube (2299968 = 132³).

The spelling of 2221254 in words is "two million, two hundred twenty-one thousand, two hundred fifty-four".