2221230133 has 4 divisors (see below), whose sum is σ = 2221339180. Its totient is φ = 2221121088.

The previous prime is 2221230119. The next prime is 2221230157. The reversal of 2221230133 is 3310321222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1257624369 + 963605764 = 35463^2 + 31042^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221230133 - 2²⁹ = 1684359221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221230133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221230103) 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, 13860 + ... + 68077.

It is an arithmetic number, because the mean of its divisors is an integer number (555334795).

Almost surely, 2^2221230133 is an apocalyptic number.

It is an amenable number.

2221230133 is a deficient number, since it is larger than the sum of its proper divisors (109047).

2221230133 is an equidigital number, since it uses as much as digits as its factorization.

2221230133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109046.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2221230133 is about 47129.9282091539. The cubic root of 2221230133 is about 1304.7616565840.

Adding to 2221230133 its reverse (3310321222), we get a palindrome (5531551355).

The spelling of 2221230133 in words is "two billion, two hundred twenty-one million, two hundred thirty thousand, one hundred thirty-three".