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210012221221222 = 27191172427455489
BaseRepresentation
bin101111110000000101000111…
…110110000010100101100110
31000112120222020210020200012211
4233300011013312002211212
5210011320012113034342
62022354141005434034
762143611422436520
oct5760050766024546
91015528223220184
10210012221221222
1160a097569657a2
121b679937b6b91a
1390250b5356444
1439c0907cb8a10
151942d76d9ec17
hexbf0147d82966

210012221221222 has 32 divisors (see below), whose sum is σ = 361908770549760. Its totient is φ = 89533290232320.

The previous prime is 210012221221189. The next prime is 210012221221349. The reversal of 210012221221222 is 222122122210012.

It is a junction number, because it is equal to n+sod(n) for n = 210012221221193 and 210012221221202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460842054 + ... + 461297542.

It is an arithmetic number, because the mean of its divisors is an integer number (11309649079680).

Almost surely, 2210012221221222 is an apocalyptic number.

210012221221222 is a deficient number, since it is larger than the sum of its proper divisors (151896549328538).

210012221221222 is a wasteful number, since it uses less digits than its factorization.

210012221221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628116.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 210012221221222 its reverse (222122122210012), we get a palindrome (432134343431234).

The spelling of 210012221221222 in words is "two hundred ten trillion, twelve billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty-two".

Divisors: 1 2 7 14 191 382 1337 2674 172427 344854 455489 910978 1206989 2413978 3188423 6376846 32933557 65867114 86998399 173996798 230534899 461069798 608988793 1217977586 78538601803 157077203606 549770212621 1099540425242 15000872944373 30001745888746 105006110610611 210012221221222