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10124101221 = 3132291133591
BaseRepresentation
bin10010110110111000…
…11000011001100101
3222010120021121222220
421123130120121211
5131213232214341
64352334342553
7505612304043
oct113334303145
928116247886
1010124101221
114325878103
121b6665aa59
13c5461c050
146c0829393
153e3c23a66
hex25b718665

10124101221 has 16 divisors (see below), whose sum is σ = 14600664960. Its totient is φ = 6203004480.

The previous prime is 10124101217. The next prime is 10124101237. The reversal of 10124101221 is 12210142101.

10124101221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10124101221 - 22 = 10124101217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10124101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10124101271) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 557865 + ... + 575726.

It is an arithmetic number, because the mean of its divisors is an integer number (912541560).

Almost surely, 210124101221 is an apocalyptic number.

It is an amenable number.

10124101221 is a deficient number, since it is larger than the sum of its proper divisors (4476563739).

10124101221 is a wasteful number, since it uses less digits than its factorization.

10124101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133836.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10124101221 its reverse (12210142101), we get a palindrome (22334243322).

The spelling of 10124101221 in words is "ten billion, one hundred twenty-four million, one hundred one thousand, two hundred twenty-one".

Divisors: 1 3 13 39 229 687 2977 8931 1133591 3400773 14736683 44210049 259592339 778777017 3374700407 10124101221