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10121311222 = 2118922412
BaseRepresentation
bin10010110110100011…
…01111001111110110
3222010101000212211121
421123101233033312
5131212023424342
64352154454154
7505546503661
oct113321571766
928111025747
1010121311222
114324241a20
121b6573435a
13c53b83169
146c03006d8
153e3872067
hex25b46f3f6

10121311222 has 36 divisors (see below), whose sum is σ = 16820119908. Its totient is φ = 4530028800.

The previous prime is 10121311183. The next prime is 10121311223. The reversal of 10121311222 is 22211312101.

It is a junction number, because it is equal to n+sod(n) for n = 10121311196 and 10121311205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121311223) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 41997022 + ... + 41997262.

It is an arithmetic number, because the mean of its divisors is an integer number (467225553).

Almost surely, 210121311222 is an apocalyptic number.

10121311222 is a deficient number, since it is larger than the sum of its proper divisors (6698808686).

10121311222 is an frugal number, since it uses more digits than its factorization.

10121311222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10121311222 its reverse (22211312101), we get a palindrome (32332623323).

The spelling of 10121311222 in words is "ten billion, one hundred twenty-one million, three hundred eleven thousand, two hundred twenty-two".

Divisors: 1 2 11 22 89 178 241 482 979 1958 2651 5302 7921 15842 21449 42898 58081 87131 116162 174262 235939 471878 638891 1277782 1908961 3817922 5169209 10338418 20998571 41997142 56861299 113722598 460059601 920119202 5060655611 10121311222