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212000122 = 2251422311
BaseRepresentation
bin11001010001011…
…01110101111010
3112202220201111101
430220231311322
5413233000442
633011522014
75152654105
oct1450556572
9482821441
10212000122
11a9739914
125abb930a
1334bc9379
142022773c
1513929cb7
hexca2dd7a

212000122 has 8 divisors (see below), whose sum is σ = 319267872. Its totient is φ = 105577500.

The previous prime is 212000101. The next prime is 212000137. The reversal of 212000122 is 221000212.

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

It is a super-3 number, since 3×2120001223 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212000099 and 212000108.

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, 210654 + ... + 211657.

It is an arithmetic number, because the mean of its divisors is an integer number (39908484).

Almost surely, 2212000122 is an apocalyptic number.

212000122 is a deficient number, since it is larger than the sum of its proper divisors (107267750).

212000122 is a wasteful number, since it uses less digits than its factorization.

212000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422564.

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

The square root of 212000122 is about 14560.2239680576. The cubic root of 212000122 is about 596.2733101538.

Adding to 212000122 its reverse (221000212), we get a palindrome (433000334).

The spelling of 212000122 in words is "two hundred twelve million, one hundred twenty-two", and thus it is an aban number.

Divisors: 1 2 251 502 422311 844622 106000061 212000122