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201021102112 = 25972667649
BaseRepresentation
bin1011101100110111001…
…0101001100000100000
3201012212111200001021011
42323031302221200200
511243142400231422
6232203043510304
720344330114045
oct2731562514040
9635774601234
10201021102112
1178286198346
1232b61688394
1315c57a372cc
149a2d9631cc
155367e23077
hex2ecdca9820

201021102112 has 36 divisors (see below), whose sum is σ = 399882958650. Its totient is φ = 99474210816.

The previous prime is 201021102103. The next prime is 201021102187. The reversal of 201021102112 is 211201120102.

Adding to 201021102112 its reverse (211201120102), we get a palindrome (412222222214).

It can be written as a sum of positive squares in 3 ways, for example, as 158120750736 + 42900351376 = 397644^2 + 207124^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201021102092 and 201021102101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32737 + ... + 634912.

Almost surely, 2201021102112 is an apocalyptic number.

It is an amenable number.

201021102112 is a deficient number, since it is larger than the sum of its proper divisors (198861856538).

201021102112 is an frugal number, since it uses more digits than its factorization.

201021102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667853 (or 667748 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The spelling of 201021102112 in words is "two hundred one billion, twenty-one million, one hundred two thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 97 194 388 776 1552 3104 9409 18818 37636 75272 150544 301088 667649 1335298 2670596 5341192 10682384 21364768 64761953 129523906 259047812 518095624 1036191248 2072382496 6281909441 12563818882 25127637764 50255275528 100510551056 201021102112