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20111222233 is a prime number
BaseRepresentation
bin10010101110101110…
…001110010111011001
31220220120210221110201
4102232232032113121
5312141433102413
613123341142201
71311242365654
oct225656162731
956816727421
1020111222233
118590295a23
123a9325a961
131b8674a3cb
14d8ad9889b
157ca8da9dd
hex4aeb8e5d9

20111222233 has 2 divisors, whose sum is σ = 20111222234. Its totient is φ = 20111222232.

The previous prime is 20111222203. The next prime is 20111222237. The reversal of 20111222233 is 33222211102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17781422409 + 2329799824 = 133347^2 + 48268^2 .

It is a cyclic number.

It is not a de Polignac number, because 20111222233 - 221 = 20109125081 is a prime.

It is a super-2 number, since 2×201112222332 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20111222233.

It is not a weakly prime, because it can be changed into another prime (20111222237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055611116 + 10055611117.

It is an arithmetic number, because the mean of its divisors is an integer number (10055611117).

Almost surely, 220111222233 is an apocalyptic number.

It is an amenable number.

20111222233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111222233 is an equidigital number, since it uses as much as digits as its factorization.

20111222233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20111222233 its reverse (33222211102), we get a palindrome (53333433335).

The spelling of 20111222233 in words is "twenty billion, one hundred eleven million, two hundred twenty-two thousand, two hundred thirty-three".