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122222 = 2232657
BaseRepresentation
bin11101110101101110
320012122202
4131311232
512402342
62341502
71016222
oct356556
9205582
10122222
1183911
125a892
1343829
1432782
1526332
hex1dd6e

122222 has 8 divisors (see below), whose sum is σ = 191376. Its totient is φ = 58432.

The previous prime is 122219. The next prime is 122231. The reversal of 122222 is 222221.

Adding to 122222 its reverse (222221), we get a palindrome (344443).

Subtracting 122222 from its reverse (222221), we obtain a palindrome (99999).

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

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

It is an Ulam number.

122222 is a modest number, since divided by 222 gives 122 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283 + ... + 1374.

It is an arithmetic number, because the mean of its divisors is an integer number (23922).

2122222 is an apocalyptic number.

122222 is a deficient number, since it is larger than the sum of its proper divisors (69154).

122222 is a wasteful number, since it uses less digits than its factorization.

122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682.

The product of its digits is 32, while the sum is 11.

The square root of 122222 is about 349.6026315690. The cubic root of 122222 is about 49.6268216882.

The spelling of 122222 in words is "one hundred twenty-two thousand, two hundred twenty-two", and thus it is an iban number.

Divisors: 1 2 23 46 2657 5314 61111 122222