Search a number
-
+
122202331 = 181675151
BaseRepresentation
bin1110100100010…
…10100011011011
322111221112002021
413102022203123
5222240433311
620043115311
73012463006
oct722124333
9274845067
10122202331
1162a86469
1234b12b37
131c418494
141233053d
15aadd171
hex748a8db

122202331 has 4 divisors (see below), whose sum is σ = 122877664. Its totient is φ = 121527000.

The previous prime is 122202329. The next prime is 122202347. The reversal of 122202331 is 133202221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133202221 = 782317027.

It is a cyclic number.

It is not a de Polignac number, because 122202331 - 21 = 122202329 is a prime.

It is a super-2 number, since 2×1222023312 = 29866819403667122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122202371) 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, 337395 + ... + 337756.

It is an arithmetic number, because the mean of its divisors is an integer number (30719416).

Almost surely, 2122202331 is an apocalyptic number.

122202331 is a deficient number, since it is larger than the sum of its proper divisors (675333).

122202331 is an equidigital number, since it uses as much as digits as its factorization.

122202331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675332.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 122202331 is about 11054.5163168725. The cubic root of 122202331 is about 496.2415942251.

Adding to 122202331 its reverse (133202221), we get a palindrome (255404552).

The spelling of 122202331 in words is "one hundred twenty-two million, two hundred two thousand, three hundred thirty-one".

Divisors: 1 181 675151 122202331