222028201 has 4 divisors (see below), whose sum is σ = 222534400. Its totient is φ = 221522004.

The previous prime is 222028181. The next prime is 222028229. The reversal of 222028201 is 102820222.

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.

It is a cyclic number.

It is not a de Polignac number, because 222028201 - 2¹⁷ = 221897129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222028241) 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, 252441 + ... + 253318.

It is an arithmetic number, because the mean of its divisors is an integer number (55633600).

Almost surely, 2^222028201 is an apocalyptic number.

It is an amenable number.

222028201 is a deficient number, since it is larger than the sum of its proper divisors (506199).

222028201 is an equidigital number, since it uses as much as digits as its factorization.

222028201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506198.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 222028201 is about 14900.6107592944. The cubic root of 222028201 is about 605.5305329702.

Adding to 222028201 its reverse (102820222), we get a palindrome (324848423).

It can be divided in two parts, 222028 and 201, that multiplied together give a triangular number (44627628 = T₉₄₄₇).

The spelling of 222028201 in words is "two hundred twenty-two million, twenty-eight thousand, two hundred one".