Search a number
-
+
122112239 is a prime number
BaseRepresentation
bin1110100011101…
…00100011101111
322111202221111112
413101310203233
5222230042424
620041142235
73011636234
oct721644357
9274687445
10122112239
1162a24807
1234a8a97b
131c3b6482
141230978b
15aac160e
hex74748ef

122112239 has 2 divisors, whose sum is σ = 122112240. Its totient is φ = 122112238.

The previous prime is 122112229. The next prime is 122112293. The reversal of 122112239 is 932211221.

It is a happy number.

Together with next prime (122112293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (932211221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122112239 - 224 = 105335023 is a prime.

It is a super-2 number, since 2×1221122392 = 29822797827186242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122112209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61056119 + 61056120.

It is an arithmetic number, because the mean of its divisors is an integer number (61056120).

Almost surely, 2122112239 is an apocalyptic number.

122112239 is a deficient number, since it is larger than the sum of its proper divisors (1).

122112239 is an equidigital number, since it uses as much as digits as its factorization.

122112239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 23.

The square root of 122112239 is about 11050.4406699462. The cubic root of 122112239 is about 496.1196151311.

The spelling of 122112239 in words is "one hundred twenty-two million, one hundred twelve thousand, two hundred thirty-nine".