1144220213 has 8 divisors (see below), whose sum is σ = 1156709376. Its totient is φ = 1131754000.

The previous prime is 1144220191. The next prime is 1144220267. The reversal of 1144220213 is 3120224411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144220213 - 2¹⁸ = 1143958069 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 (1144229213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106268 + ... + 116538.

It is an arithmetic number, because the mean of its divisors is an integer number (144588672).

Almost surely, 2^1144220213 is an apocalyptic number.

It is an amenable number.

1144220213 is a deficient number, since it is larger than the sum of its proper divisors (12489163).

1144220213 is a wasteful number, since it uses less digits than its factorization.

1144220213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11475.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1144220213 is about 33826.3242608475. The cubic root of 1144220213 is about 1045.9314095389.

Adding to 1144220213 its reverse (3120224411), we get a palindrome (4264444624).

The spelling of 1144220213 in words is "one billion, one hundred forty-four million, two hundred twenty thousand, two hundred thirteen".