222440501 has 4 divisors (see below), whose sum is σ = 222763104. Its totient is φ = 222117900.

The previous prime is 222440483. The next prime is 222440507. The reversal of 222440501 is 105044222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 105044222 = 2 ⋅52522111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222440501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222440507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160265 + ... + 161646.

It is an arithmetic number, because the mean of its divisors is an integer number (55690776).

Almost surely, 2^222440501 is an apocalyptic number.

It is an amenable number.

222440501 is a deficient number, since it is larger than the sum of its proper divisors (322603).

222440501 is an equidigital number, since it uses as much as digits as its factorization.

222440501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322602.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 222440501 is about 14914.4393458152. The cubic root of 222440501 is about 605.9051188104.

Adding to 222440501 its reverse (105044222), we get a palindrome (327484723).

The spelling of 222440501 in words is "two hundred twenty-two million, four hundred forty thousand, five hundred one".