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11221002223 = 151311238943
BaseRepresentation
bin10100111001101001…
…01110011111101111
31001222000021222021221
422130310232133233
5140440034032343
65053241004211
7545031642124
oct123464563757
931860258257
1011221002223
114838a66062
122211a83667
13109a9562b2
1478639c74b
1545a1965ed
hex29cd2e7ef

11221002223 has 8 divisors (see below), whose sum is σ = 11331680256. Its totient is φ = 11110803000.

The previous prime is 11221002209. The next prime is 11221002227. The reversal of 11221002223 is 32220012211.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11221002223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11221002197 and 11221002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221002227) 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, 72511 + ... + 166432.

It is an arithmetic number, because the mean of its divisors is an integer number (1416460032).

Almost surely, 211221002223 is an apocalyptic number.

11221002223 is a deficient number, since it is larger than the sum of its proper divisors (110678033).

11221002223 is a wasteful number, since it uses less digits than its factorization.

11221002223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239405.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 11221002223 its reverse (32220012211), we get a palindrome (43441014434).

The spelling of 11221002223 in words is "eleven billion, two hundred twenty-one million, two thousand, two hundred twenty-three".

Divisors: 1 151 311 46961 238943 36080393 74311273 11221002223