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122212 = 2230553
BaseRepresentation
bin11101110101100100
320012122101
4131311210
512402322
62341444
71016206
oct356544
9205571
10122212
1183902
125a884
134381c
1432776
1526327
hex1dd64

122212 has 6 divisors (see below), whose sum is σ = 213878. Its totient is φ = 61104.

The previous prime is 122209. The next prime is 122219. The reversal of 122212 is 212221.

It can be written as a sum of positive squares in only one way, i.e., 87616 + 34596 = 296^2 + 186^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (122219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15273 + ... + 15280.

2122212 is an apocalyptic number.

It is an amenable number.

122212 is a deficient number, since it is larger than the sum of its proper divisors (91666).

122212 is a wasteful number, since it uses less digits than its factorization.

122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30557 (or 30555 counting only the distinct ones).

The product of its digits is 16, while the sum is 10.

The square root of 122212 is about 349.5883293247. The cubic root of 122212 is about 49.6254681901.

Adding to 122212 its reverse (212221), we get a palindrome (334433).

Subtracting 122212 from its reverse (212221), we obtain a palindrome (90009).

It can be divided in two parts, 12221 and 2, that multiplied together give a palindrome (24442).

The spelling of 122212 in words is "one hundred twenty-two thousand, two hundred twelve", and thus it is an iban number.

Divisors: 1 2 4 30553 61106 122212