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10122221101 = 1919713611987
BaseRepresentation
bin10010110110101010…
…01101011000101101
3222010102202002221211
421123111031120231
5131212242033401
64352230154421
7505560313456
oct113325153055
928112662854
1010122221101
114324803593
121b65ab2a11
13c54111355
146c049a12d
153e39a1951
hex25b54d62d

10122221101 has 16 divisors (see below), whose sum is σ = 10722317760. Its totient is φ = 9528986880.

The previous prime is 10122221089. The next prime is 10122221119. The reversal of 10122221101 is 10112222101.

It is a cyclic number.

It is not a de Polignac number, because 10122221101 - 217 = 10122090029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122221701) 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, 5093230 + ... + 5095216.

It is an arithmetic number, because the mean of its divisors is an integer number (670144860).

Almost surely, 210122221101 is an apocalyptic number.

It is an amenable number.

10122221101 is a deficient number, since it is larger than the sum of its proper divisors (600096659).

10122221101 is a wasteful number, since it uses less digits than its factorization.

10122221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564.

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

Adding to 10122221101 its reverse (10112222101), we get a palindrome (20234443202).

The spelling of 10122221101 in words is "ten billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred one".

Divisors: 1 19 197 1361 1987 3743 25859 37753 268117 391439 2704307 5094223 7437341 51381833 532748479 10122221101