222144501 has 16 divisors (see below), whose sum is σ = 298366848. Its totient is φ = 147014400.

The previous prime is 222144479. The next prime is 222144521. The reversal of 222144501 is 105441222.

It is not a de Polignac number, because 222144501 - 2⁵ = 222144469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222144521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426121 + ... + 426641.

It is an arithmetic number, because the mean of its divisors is an integer number (18647928).

Almost surely, 2^222144501 is an apocalyptic number.

It is an amenable number.

222144501 is a deficient number, since it is larger than the sum of its proper divisors (76222347).

222144501 is a wasteful number, since it uses less digits than its factorization.

222144501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 222144501 is about 14904.5127729826. The cubic root of 222144501 is about 605.6362416267.

Adding to 222144501 its reverse (105441222), we get a palindrome (327585723).

The spelling of 222144501 in words is "two hundred twenty-two million, one hundred forty-four thousand, five hundred one".