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22212103 = 193311491
BaseRepresentation
bin101010010111…
…0111000000111
31112210111021111
41110232320013
521141241403
62112025451
7356541214
oct124567007
945714244
1022212103
11115a1311
127532287
1347a9274
142d42b0b
151e3b56d
hex152ee07

22212103 has 4 divisors (see below), whose sum is σ = 22225528. Its totient is φ = 22198680.

The previous prime is 22212101. The next prime is 22212107. The reversal of 22212103 is 30121222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30121222 = 215060611.

It is a cyclic number.

It is not a de Polignac number, because 22212103 - 21 = 22212101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3813 + ... + 7678.

It is an arithmetic number, because the mean of its divisors is an integer number (5556382).

Almost surely, 222212103 is an apocalyptic number.

22212103 is a deficient number, since it is larger than the sum of its proper divisors (13425).

22212103 is a wasteful number, since it uses less digits than its factorization.

22212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13424.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22212103 is about 4712.9717800980. The cubic root of 22212103 is about 281.1015408753.

Adding to 22212103 its reverse (30121222), we get a palindrome (52333325).

The spelling of 22212103 in words is "twenty-two million, two hundred twelve thousand, one hundred three".

Divisors: 1 1933 11491 22212103