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10101101121221 = 111396606344749
BaseRepresentation
bin1001001011111101100010…
…0010110100111011000101
31022202122201002211100102112
42102333120202310323011
52310444023341334341
633252214244550405
72061531462605615
oct222773042647305
938678632740375
1010101101121221
11324494227a860
1211717b23b2405
135836b6b1c086
1426cc78500a45
15127b45b85aeb
hex92fd88b4ec5

10101101121221 has 8 divisors (see below), whose sum is σ = 11098659180000. Its totient is φ = 9116755752240.

The previous prime is 10101101121179. The next prime is 10101101121229. The reversal of 10101101121221 is 12212110110101.

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

It is a cyclic number.

It is not a de Polignac number, because 10101101121221 - 238 = 9826223214277 is a prime.

It is a super-2 number, since 2×101011011212212 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10101101121196 and 10101101121205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101101121229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3303170846 + ... + 3303173903.

It is an arithmetic number, because the mean of its divisors is an integer number (1387332397500).

Almost surely, 210101101121221 is an apocalyptic number.

10101101121221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10101101121221 is a deficient number, since it is larger than the sum of its proper divisors (997558058779).

10101101121221 is a wasteful number, since it uses less digits than its factorization.

10101101121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606344899.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10101101121221 its reverse (12212110110101), we get a palindrome (22313211231322).

The spelling of 10101101121221 in words is "ten trillion, one hundred one billion, one hundred one million, one hundred twenty-one thousand, two hundred twenty-one".

Divisors: 1 11 139 1529 6606344749 72669792239 918281920111 10101101121221