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120211000221 = 31323134014493
BaseRepresentation
bin110111111110100100…
…0100100101110011101
3102111021201012112101110
41233331020210232131
53432143004001341
6131120230532233
711453640433254
oct1577510445635
9374251175343
10120211000221
1146a87a80774
121b36a507079
13b449b23580
145b6538d79b
1531d8784216
hex1bfd224b9d

120211000221 has 16 divisors (see below), whose sum is σ = 180115479936. Its totient is φ = 70759651776.

The previous prime is 120211000177. The next prime is 120211000319. The reversal of 120211000221 is 122000112021.

It is not a de Polignac number, because 120211000221 - 215 = 120210967453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120211000197 and 120211000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120231000221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67006350 + ... + 67008143.

It is an arithmetic number, because the mean of its divisors is an integer number (11257217496).

Almost surely, 2120211000221 is an apocalyptic number.

It is an amenable number.

120211000221 is a deficient number, since it is larger than the sum of its proper divisors (59904479715).

120211000221 is a wasteful number, since it uses less digits than its factorization.

120211000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134014532.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120211000221 its reverse (122000112021), we get a palindrome (242211112242).

The spelling of 120211000221 in words is "one hundred twenty billion, two hundred eleven million, two hundred twenty-one", and thus it is an aban number.

Divisors: 1 3 13 23 39 69 299 897 134014493 402043479 1742188409 3082333339 5226565227 9247000017 40070333407 120211000221